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Low-grade myofibrosarcoma of the maxillary sinus:Two case reports
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作者 Anna Mydlak ŁukaszŚcibik +4 位作者 Monika Durzynska Jakub Zwoliński Karolina Buchajska Olga Lenartowicz Jakub Kucharz 《World Journal of Clinical Oncology》 2024年第4期566-575,共10页
BACKGROUND Low-grade myofibroblastic sarcoma(LGMS)is an extremely rare tumor characterized by the malignant proliferation of myofibroblasts.LGMS most commonly develops in adults,predominantly in males,in the head and ... BACKGROUND Low-grade myofibroblastic sarcoma(LGMS)is an extremely rare tumor characterized by the malignant proliferation of myofibroblasts.LGMS most commonly develops in adults,predominantly in males,in the head and neck region,oral cavity,especially on the tongue,mandible,and larynx.This article presents 2 cases of LGMS localized to the maxillary sinus and provides an overview of the available literature.CASE SUMMARY Two patients with LGMS located in the maxillary sinus underwent surgery at the Department of Head and Neck Surgery.Case 1:A 46-year-old patient was admitted to the clinic with suspected LGMS recurrence in the right maxillary sinus(rT4aN0M0),with symptoms of pain in the suborbital area,watering of the right eye,thick discharge from the right nostril,and augmented facial asymmetry.After open biopsy-confirmed LGMS,the patient underwent expanded maxillectomy of the right side with immediate palate reconstruction using a microvascular skin flap harvested surgically from the middle arm.The patient qualified for adjuvant radiotherapy for the postoperative bed,with an additional margin.Currently,the patient is under 1.5 years of observation with no evidence of disease.Case 2:A 45-year-old man was admitted to our clinic with facial asymmetry,strabismus,exophthalmos,and visual impairment in the right eye.Six months earlier,the patient had undergone partial jaw resection at another hospital for fibromatosis.A contrast-enhanced computed tomography scan revealed a tumor mass in the postoperative log after an earlier procedure.An open biopsy confirmed lowgrade fibrosarcoma(rT4aN0M0).The patient qualified for an extended total right maxillectomy with orbital excision and right hemimandibulectomy with immediate microvascular reconstruction using an anterolateral thigh flap.The patient subsequently underwent adjuvant radiotherapy to the postoperative area.After 9 months,recurrence occurred in the right mandibular arch below the irradiated area.The lesion infiltrated the base of the skull,which warranted the withdrawal of radiotherapy and salvage surgery.The patient qualified for palliative chemotherapy with a regimen of doxorubicin+dacarbazine+cyclophosphamide and palliative radiotherapy for bone metastases.The patient died 26 months after surgical treatment.The cases have been assessed and compared with cases in the literature.CONCLUSION No specific diagnostic criteria or treatment strategies have been developed for LGMS.The treatment used for LGMS is the same as that used for sinonasal cancer radical tumor excision;adjuvant radiotherapy or chemoradiotherapy should also be considered.They have low malignant potential but are highly invasive,tend to recur,and metastasize to distant sites.Patients should undergo regular follow-up examinations to detect recurrence or metastasis at an early stage.Patients should be treated and observed at the highest referral centers. 展开更多
关键词 Head and neck cancer Paranasal sinuses maxillary sinus SARCOMA Low-grade myofibroblastic sarcoma Case report
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Socioeconomic Status Impacts the Prognosis of Chronic Rhinosinusitis Treated by Endoscopic Sinus Surgery:An Observational Cohort Study in Northeast China
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作者 HAO Shuai ZHANG Xue Yan +2 位作者 GAO Jiao WANG Yan YAN Ai Hui 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2023年第11期1059-1067,共9页
Objective To explore the association between socioeconomic status(SES)and postoperative outcomes in patients with chronic sinusitis(CRS)after functional endoscopic sinus surgery(ESS).Methods We conducted an observatio... Objective To explore the association between socioeconomic status(SES)and postoperative outcomes in patients with chronic sinusitis(CRS)after functional endoscopic sinus surgery(ESS).Methods We conducted an observational cohort study of 1,047 patients with CRS undergoing ESS.Discharged patients were followed up to 72 weeks for all-cause recurrence events.Baseline SES was established based on occupation,education level,and family income of the patients 1 year before the operation.Kaplan–Meier method was used to calculate the recovery rate after ESS,and Cox proportional hazards regression analysis was used to evaluate the relationship between SES and prognosis.Results Patients of middle SES had lower unadjusted all-cause recurrence than those of low or high SES;24-week overall recovery rate was 90.4%[95%confidence interval(CI):89.6%–91.2%]in patients of middle SES,13.5%(95%CI:12.8%–14.2%)in patients of low SES,and 31.7%(95%CI:30.7%–32.7%)in patients of high SES(both log-rank P<0.001).After adjustment for covariates,hazard ratios(HRs)were7.69(95%CI:6.17–9.71,Ptrend<0.001)for all-cause recurrence for low SES versus middle SES,and 6.19(95%CI:4.78–7.93,Ptrend<0.001)for middle SES versus high SES.Conclusion Low SES and high SES were more associated with the worse prognosis of CRS patients after ESS than middle SES. 展开更多
关键词 Chronic rhinosinusitis Endoscopic sinus surgery Socioeconomic status
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Maxillary Sinus Schwannoma—A Rare Tumor with Rarer Site of Occurrence
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作者 Subbiah Shanmugam Sujay Susikar Suyash Singodiya 《International Journal of Otolaryngology and Head & Neck Surgery》 2023年第3期197-202,共6页
Schwannoma or neurilemmoma is a neurogenic tumor. Around 25% - 45% cases of schwannomas occur in the head and neck, of which less than 4% occurs in the nasal cavity and the paranasal sinuses. Isolated schwannomas of t... Schwannoma or neurilemmoma is a neurogenic tumor. Around 25% - 45% cases of schwannomas occur in the head and neck, of which less than 4% occurs in the nasal cavity and the paranasal sinuses. Isolated schwannomas of the maxillary sinus appear to be extremely rare. We present one such rare case of Right Maxillary Sinus schwannoma in a 48-year-old lady with swelling in the right cheek for 3 years. Infrastructure maxillectomy of the right side was done using Weber-Fergusson approach with Dieffenbach’s modification. The patient made a good postoperative recovery. We report this case keeping in mind the rarity in occurrence of isolated maxillary schwannomas. 展开更多
关键词 Schwanoma maxillary sinus MAXILLECTOMY
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Endoscopic sinus surgery plays an essential role in systematic treatment of odontogenic maxillary sinusitis
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作者 Jing Ye Sunhong Hu +2 位作者 Minxia Bian Jie Yuan Jianguo Tang 《Laparoscopic, Endoscopic and Robotic Surgery》 2018年第1期19-23,共5页
Purpose:Odontogenic maxillary sinusitis(OMS)is frequently encountered in otorhinolaryngologists'clinical practice.Endoscopic sinus surgery(ESS)instead of surgeries in intraoral approach has been widely applied amo... Purpose:Odontogenic maxillary sinusitis(OMS)is frequently encountered in otorhinolaryngologists'clinical practice.Endoscopic sinus surgery(ESS)instead of surgeries in intraoral approach has been widely applied among OMS.However appropriate treatments due to the causes of the OMS as well as the outcome have been less investigated,meanwhile the inherent incidence of OMS may be still on the rise.This study was designed to conclude our systematic treatment within follow-up examination.Materials and methods:In this retrospective study patients confirmed diagnosis of OMS who had systematic follow-up examinations were analyzed.Medical histories of otorhinolaryngologists and dentists were reviewed as well as preoperative examination protocols.Result:Consecutive 29 Patients(10 women,19 men)were included.41.4%(12/29)patients experienced facial pain as the most frequent symptom.69.0%(20/29)patients admitted firstly to otorhinolaryngologists,13 patients were treated with surgical procedure while 7 patients lacking of surgical indication were transferred to dentists.31.0%(9/29)patients were advised by dentist for being suspected of maxillary sinusitis,including 7 patients suffered from sinonasal complications of dental treatment(SCDT).Conventional dental treatment(root planning,root end surgery,extraction)was the most common cause.Follow up for a mean of 15.1(ranges from 6 to 96)months showed 29 patients maintaining open maxillary ostium on endoscopic examination or improving on CT except recurrence in one patient with SCDT.Conclusion:Patients should be inspected by dentists carefully when the patient has symptoms rather than sinusitis-like symptoms,the possibility of OMS should always be considered.Dental examination can help to determine whether a maxillary sinusitis has a dental origin,periodontitis and odontogenic radicular cysts still are the most common causes comparing with iatrogenic factors.Patients treated with ESS showed better tolerance and fewer postsurgical complications.Not all patients with OMS including SDCT need definitely surgery whether ESS or intraoral approach,removing dental focus followed with antibiotics would be optimistic choice. 展开更多
关键词 Odontogenic maxillary sinusitis Endoscopic sinus surgery Intraoral approach
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Computed tomography scans of paranasal sinuses before functional endoscopic sinus surgery 被引量:10
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作者 Emma C Cashman Peter J MacMahon David Smyth 《World Journal of Radiology》 CAS 2011年第8期199-204,共6页
This review aims to familiarize the radiologist with the common types of sinus surgery including their indications and techniques.We also illustrate how surgeons interpret 3D sinus anatomy when evaluating computed tom... This review aims to familiarize the radiologist with the common types of sinus surgery including their indications and techniques.We also illustrate how surgeons interpret 3D sinus anatomy when evaluating computed tomography(CT)studies.Preoperative evaluation by CT is mandatory for all patients undergoing functional endoscopic sinus surgery(FESS).In the past decade in particular,CT of the paranasal sinuses has become a roadmap for FESS.The radiologist's goal is to report on five key points:the extent of sinus opacification,opacification of sinus drainage pathways,anatomical variants,critical variants,and condition of surrounding soft tissues of the neck,brain and orbits.We present a systematic approach to the use of coronal,axial,and sagittal images in CT evaluation before FESS. 展开更多
关键词 COMPUTED tomography sinus Functional ENDOSCOPIC sinus surgery ANATOMY COMPLICATIONS
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Minimally invasive endoscopic maxillary sinus lifting and immediate implant placement: A case report 被引量:4
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作者 Mahmoud Mudalal Xiao-Lin Sun +5 位作者 Xue Li Jiao Fang Man-Lin Qi Jia Wang Liu-Yi Du Yan-Min Zhou 《World Journal of Clinical Cases》 SCIE 2019年第10期1234-1241,共8页
BACKGROUND This case report discusses a modified approach for maxillary sinus augmentation,in which platelet-rich fibrin,endoscope,simultaneous implant placement,and sinus floor elevation(PESS)were applied for a maxil... BACKGROUND This case report discusses a modified approach for maxillary sinus augmentation,in which platelet-rich fibrin,endoscope,simultaneous implant placement,and sinus floor elevation(PESS)were applied for a maxillary sinus floor lift in a 40-year-old patient.CASE SUMMARY A 40-year-old woman suffered missing upper right first molar.Implant stability quotient and cone-beam computed tomography(CBCT)were used to evaluate the diagnosis.CBCT showed insufficient posterior maxillary bone with a mean residual alveolar bone height of only 3.5 mm.The patient underwent a minimally invasive sinus floor elevation endoscopically.The sinus membrane was elevated in two stages,and a 12-mm implant was placed immediately.At 3 mo postoperatively,the final impressions were accomplished,and a full-ceramic crown was fit-placed.A 6-mo follow-up demonstrated satisfactory aesthetic and functional results.CONCLUSION This is the first report to use an endoscope for maxillary sinus floor lifting in cases with severe and insufficient bone height.This case report demonstrates the advantages of the PESS technique,which include minimal invasiveness with high precision,being applicable in cases with a residual alveolar bone height<4 mm with a promising result,and a shortened treatment period from 12 to 3 mo. 展开更多
关键词 maxillary sinus augmentation Platelet-rich FIBRIN ENDOSCOPE Internal sinus floor elevation Case report
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Sequential Fluorescent Labeling Observation of Maxillary Sinus Augmentation by a Tissue-engineered Bone Complex in Canine Model 被引量:3
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作者 Xin-quan Jiang Shao-yi Wang Jun Zhao Xiu-li Zhang Zhi-yuan Zhang 《International Journal of Oral Science》 SCIE CAS CSCD 2009年第1期39-46,共8页
Aim To evaluate the effects of maxillary sinus floor elevation by a tissue-engineered bone complex of β-tricalcium phosphate (β-TCP) and autologous osteoblasts in dogs. Methodology Autologous osteoblasts from adul... Aim To evaluate the effects of maxillary sinus floor elevation by a tissue-engineered bone complex of β-tricalcium phosphate (β-TCP) and autologous osteoblasts in dogs. Methodology Autologous osteoblasts from adult Beagle dogs were cultured in vitro. They were further combined with β-TCP to construct the tissue-engineered bone complex. 12 cases of maxillary sinus floor elevation surgery were made bilaterally in 6 animals and randomly repaired with the following 3 groups of materials: Group A (osteoblasts/D-TCP); Group B (β-TCP); Group C (autogenous bone) (n=4 per group). A polychrome sequential fluorescent labeling was performed post-operatively and the animals were sacrificed 24 weeks after operation for histological observation.Results Our results showed that autologous osteoblasts were successfully expanded and the osteoblastic phenol- types were confirmed by ALP and Alizarin red staining. The cells could attach and proliferate well on the surface of the ~3-TCP scaffold. The fluorescent and histological observation showed that the tissue-engineered bone complex had an earlier mineralization and more bone formation inside the scaffold than β-TCP along or even autologous bone. It had also maximally maintained the elevated sinus height than both control groups. Conclusion Porous 13-TCP has served as a good scaffold for autologous osteoblasts seeding. The tissue-engineered bone complex with β-TCP and autologous osteoblasts might be a better alternative to autologous bone for the clinical edentulous maxillary sinus augmentation. 展开更多
关键词 maxillary sinus augmentation tissue engi-neering β-tricalcium phosphate OSTEOBLASTS fluorescentlabeling
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Embryonal rhabdomyosarcoma in the maxillary sinus with orbital involvement in a pediatric patient:Case report 被引量:3
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作者 Ana Carolina Rodrigues de Melo Tácio Candeia Lyra +4 位作者 Isabella Lima Arrais Ribeiro Alexandre Rolim da Paz Paulo Rogério Ferreti Bonan Ricardo Dias de Castro Ana Maria Gondim Valen?a 《World Journal of Clinical Cases》 SCIE 2017年第12期440-445,共6页
This report presents a case of embryonal rhabdomyosarcoma(e RMS) located in the left maxillary sinus and invading the orbital cavity in a ten-year-old male patient who was treated at a referral hospital.The images pro... This report presents a case of embryonal rhabdomyosarcoma(e RMS) located in the left maxillary sinus and invading the orbital cavity in a ten-year-old male patient who was treated at a referral hospital.The images provided from the computed tomography showed a heterogeneous mass with soft-tissue density,occupying part of the left half of the face inside the maxillary sinus,and infiltrating and destroying the bone structure of the maxillary sinus,left orbit,ethmoidal cells,nasal cavity,and sphenoid sinus.An analysis of the histological sections revealed an undifferentiated malignant neoplasm infiltrating the skeletal muscle tissue.The immunohistochemical analysis was positive for the antigens:MyoD 1,myogenin,desmin,and Ki67(100% positivity in neoplastic cells),allowing the identification of the tumour as an eR MS.The treatment protocol included initial chemotherapy followed by radiotherapy and finally surgery.The total time of the treatment was nine months,and in 18-mo of follow-up period did not show no local recurrences and a lack of visual impairment. 展开更多
关键词 Oncology EMBRYONAL RHABDOMYOSARCOMA PEDIATRICS maxillary sinus Chemotherapy
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Surgical treatment of pulsatile tinnitus related to the sigmoid sinus
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作者 Yuxuan Xing Song Gao +4 位作者 Yuchen Zhou Shenghua Song Ling Lu Jie Chen Yanhong Dai 《Journal of Otology》 CSCD 2023年第1期21-25,共5页
Objective: Tinnitus-a common clinical symptom-can be categorized into pulsatile tinnitus(PT) and non-PT. Among these, PT is usually associated with sigmoid sinus symptoms, such as sigmoid sinus wall defect or divertic... Objective: Tinnitus-a common clinical symptom-can be categorized into pulsatile tinnitus(PT) and non-PT. Among these, PT is usually associated with sigmoid sinus symptoms, such as sigmoid sinus wall defect or diverticulum, for which various surgical treatments are available. We have discussed the clinical efficacy of surgery for sigmoid sinus-associated PT via the transmastoid approach in this study.Methods: We conducted a retrospective review of 4 patients who underwent surgery for sigmoid sinusassociated PT via the transmastoid approach at Nanjing Drum Tower Hospital from January to December2020. Of these, 2 patients had sigmoid sinus wall defect and 2 had sigmoid sinus diverticulum. Postoperative tinnitus grading and surgical efficacy were determined.Results: After surgery, PT dissolved in 3 patients, while tinnitus significantly decreased in 1 patient.During the follow-up period of 12-18 months, none of the 4 patients showed complications related to increased intracranial pressure or venous sinus thrombosis, and tinnitus symptoms disappeared in 3patients without recurrence, although 1 patient occasionally developed tinnitus. Postoperative thin-slice CTA of the temporal bone indicated that the sigmoid sinus bone wall defect or diverticulum was completely repaired with a thick soft tissue coverage.Conclusion: Surgical repair of sigmoid sinus-associated PT via the transmastoid approach deserves clinical promotion as it exhibited better efficiency while being relatively less invasive. 展开更多
关键词 Pulsatile tinnitus Sigmoid sinus wall defect Sigmoid sinus diverticulum Efficacy of surgery Transmastoid approach
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Cerebral venous sinus thrombosis following transsphenoidal surgery for craniopharyngioma:A case report 被引量:2
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作者 Tao Chang Yan-Long Yang +1 位作者 Li Gao Li-Hong Li 《World Journal of Clinical Cases》 SCIE 2020年第6期1158-1163,共6页
BACKGROUND Cerebral venous sinus thrombosis(CVST)is a rare condition in patients with craniopharyngioma following transsphenoidal surgery.CASE SUMMARY A 56-year-old man who underwent transsphenoidal surgery for cranio... BACKGROUND Cerebral venous sinus thrombosis(CVST)is a rare condition in patients with craniopharyngioma following transsphenoidal surgery.CASE SUMMARY A 56-year-old man who underwent transsphenoidal surgery for craniopharyngioma 26 d ago presented gradual headache and cerebrospinal fluid leakage while vomiting 5 d post-discharge and required readmission to our department of neurosurgery.After admission,head imaging examination showed a hyperdense shadow in the superior sagittal sinus and right transverse sinus,edema at the bilateral parietal lobe,and hemorrhage at the left parietal lobe and right occipital lobe;the venous phase of cerebral angiography revealed CVST.The patient was treated immediately by intravenous thrombolysis,endovascular thrombolysis,and mechanical thrombectomy after the definite diagnosis.However,the neurological status of the patient continued to deteriorate and he died on the fourth day after readmission.CONCLUSION For craniopharyngioma undergoing transsphenoidal surgery,it is vital to take an effective strategy to manage the postoperative complications,such as diabetes insipidus,severe electrolyte imbalance,and cerebrospinal fluid leakage.Additionally,the early differential diagnosis of CVST is essential when it develops clinical symptoms,especially in patients following transsphenoidal surgery with a high risk of CVST.Subsequently,the timely and effective treatment of the CVST is critical for preventing neurological deterioration. 展开更多
关键词 CRANIOPHARYNGIOMA TRANSSPHENOIDAL surgery CEREBRAL VENOUS sinus THROMBOSIS Case report
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An Unusual Maxillary Sinus Foreign Body and Its Endoscopic Assisted Removal 被引量:2
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作者 R. V. Nataraj Mohan Jagade +5 位作者 Reshma Chavan Rajesh Kar Madhavi Pandare Kartik Parelkar Arpita Singhal Kiran Kulsange 《International Journal of Otolaryngology and Head & Neck Surgery》 2015年第1期38-43,共6页
Foreign bodies in maxillary sinuses are uncommon. But the incidence is on a rise. Herewith we present a case of foreign bodies (glass pieces) in left maxillary sinus and bilateral nasolacrimal ducts, which is managed ... Foreign bodies in maxillary sinuses are uncommon. But the incidence is on a rise. Herewith we present a case of foreign bodies (glass pieces) in left maxillary sinus and bilateral nasolacrimal ducts, which is managed endoscopically. 展开更多
关键词 maxillary sinus FOREIGN Body ENDOSCOPIC Approach
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Accidental Entry of Foreign Body in Maxillary Sinus—A Case Report 被引量:1
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作者 Nishant Kumar Himanshu Bhutani +5 位作者 Pushpak Jain Abhishek Verma Sps Tomar Shaibal Chaterjee Ankur Garg Rohit Awana 《Open Journal of Stomatology》 2015年第1期1-5,共5页
Extraction of the first molar or premolar is the commonest cause of oro-antral fistula. Management involves identification of the same, removal of any foreign body from the maxillary sinus, if present, followed by app... Extraction of the first molar or premolar is the commonest cause of oro-antral fistula. Management involves identification of the same, removal of any foreign body from the maxillary sinus, if present, followed by appropriate flap for closer. A case is presented when a gutta percha (GP) point was accidentally dislodged into the right maxillary sinus during preliminary diagnosis of the oro-antral fistula. The surgical management of the case is described and is the appropriate treatment plan. 展开更多
关键词 Gutta Percha maxillary sinus Caldwell-Luc Approach BUCCAL Pad of Fat
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Anesthetic Management of a Patient with Sick Sinus Syndrome during General Anesthesia for Maxillofacial Surgery 被引量:1
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作者 Kenichi Satoh Atsumi Ishizuka +2 位作者 Ayako Ohashi Miho Kumagai Shigeharu Joh 《Open Journal of Anesthesiology》 2015年第4期53-56,共4页
Sick sinus syndrome (SSS) is a generalized abnormality of cardiac impulse formation. Patients with SSS occasionally need temporary pacing during general anesthesia. The most common issue arising in the perioperative p... Sick sinus syndrome (SSS) is a generalized abnormality of cardiac impulse formation. Patients with SSS occasionally need temporary pacing during general anesthesia. The most common issue arising in the perioperative period is electromagnetic interference with device function. We report a case of a 66-year-old man who required temporary cardiac pacing during maxillary cyst extirpation using electrocautery. 展开更多
关键词 Electrocauty ORAL MAXILLOFACIAL surgery Sick sinus Syndrome TEMPORARY CARDIAC PACING
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Correlation between Radiological Staging of Chronic Rhinosinusitis and Revision of Endoscopic Sinus Surgery 被引量:2
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作者 Dhaidan Alshammari Raneem Alshaikh +2 位作者 Manuel Bakheet Waleed Janahi Hiba Alreefy 《International Journal of Otolaryngology and Head & Neck Surgery》 2021年第2期119-130,共12页
<strong>Introduction:</strong> Chronic rhinosinusitis (CRS) is an inflammatory condition affecting the sinonasal mucosa with duration of more than 12 weeks. Multifactorial aetiology contributes to its refr... <strong>Introduction:</strong> Chronic rhinosinusitis (CRS) is an inflammatory condition affecting the sinonasal mucosa with duration of more than 12 weeks. Multifactorial aetiology contributes to its refractoriness. Functional endoscopic sinus surgery (FESS) is the most common surgical technique preferred in CRS not responding to medical management, showing high success rates. However, some failure has been noted, requiring revision FESS. CT (Computed Tomography) is a diagnostic tool for CRS, and aids in improving surgical outcomes. Combined with the Lund-Mackay scoring system, CT can help stage the CRS, predicting the need for revision surgery. <strong>Methods:</strong> In our paper, we aimed to study the relationship between severity of CRS using radiological staging and revision of functional endoscopic sinus surgery, assessing outcome after at least 1 year of follow-up. There was a single centre retrospective study involving 150 patients selected by random sampling, to study the correlation between the severity of chronic rhinosinusitis and revision of functional endoscopic sinus surgery (FESS). The study was conducted in the ENT department of King Hamad University Hospital, Bahrain for a time period of 6 months. Records were scanned and scored using Lund-Mackay system. Lund Mackay score of 10 and above was considered severe. The relation between increased severity with Lund Mackay score on the CT scan and the need for revision sinus surgeries was then determined. <strong>Results and Conclusion:</strong> This study concludes that LMS score in CT scans can be used to predict the outcomes of primary FESS procedure and the need for revision surgery in the management of CRS. 展开更多
关键词 FESS Lund-Mackay System ENT Revision sinus surgery Revision FESS Chronic Rhinosinusitis (CRS)
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Water-filled balloon in the postoperative resection cavity improves dose distribution to target volumes in radiotherapy of maxillary sinus carcinoma 被引量:1
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作者 Qun Zhang Shi-Rong Lin +3 位作者 Fang He De-Hua Kang Guo-Zhang Chen Wei Luo 《Chinese Journal of Cancer》 SCIE CAS CSCD 北大核心 2011年第11期786-793,共8页
Postoperative radiotherapy is a major treatment for patients with maxillary sinus carcinoma. However, the irregular resection cavity poses a technical difficulty for this treatment, causing uneven dose distribution to... Postoperative radiotherapy is a major treatment for patients with maxillary sinus carcinoma. However, the irregular resection cavity poses a technical difficulty for this treatment, causing uneven dose distribution to target volumes. In this study, we evaluated the dose distribution to target volumes and normal tissues in postoperative intensity-modulated radiotherapy (IMRT) after placing a water-filled balloon into the resection cavity. Three postoperative patients with advanced maxillary sinus carcinoma were selected in this trial. Water-filled balloons and supporting dental stents were fabricated according to the size of the maxillary resection cavity. Simulation CT scans were performed with or without water-filled balloons, IMRT treatment plans were established, and dose distribution to target volumes and organs at risk were evaluated. Compared to those in the treatment plan without balloons, the dose (D98) delivered to 98% of the gross tumor volume (GTV) increased by 2.1 Gy (P = 0.009), homogeneity index (HI) improved by 2.3% (P = 0.001), and target volume conformity index (TCI) of 68 Gy increased by 18.5% (P = 0.011) in the plan with balloons. Dosimetry endpoints of normal tissues around target regions in both plans were not significantly different (P > 0.05) except for the optic chiasm. In the plan without balloons, 68 Gy high-dose regions did not entirely cover target volumes in the ethmoid sinus, posteromedial wall of the maxillary sinus, or surgical margin of the hard palate. In contrast, 68 Gy high-dose regions entirely covered the GTV in the plan with balloons. These results suggest that placing a water-filled balloon in the resection cavity for postoperative IMRT of maxillary sinus c arcinoma can reduce low-dose regions and markedly and simultaneously increase dose homogeneity and conformity of target volumes. 展开更多
关键词 剂量分布 气球 充水 放疗 放射治疗 完全覆盖 切除术
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Functional Endoscopic Sinus Surgery:Its History,Theory and Diagnostic Evaluation 被引量:1
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作者 David W. Kennedy MD 《中国耳鼻咽喉头颈外科》 2000年第S1期2-2,共1页
关键词 Functional Endoscopic sinus surgery
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Mesenchymal stem cells in maxillary sinus augmentation: A systematic review with meta-analysis
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作者 Francesco G Mangano Marco Colombo +2 位作者 Giovanni Veronesi Alberto Caprioglio Carlo Mangano 《World Journal of Stem Cells》 SCIE CAS 2015年第6期976-991,共16页
AIM: To investigate the effectiveness of mesenchymal stem cells(MSCs) in maxillary sinus augmentation(MSA), with various scaffold materials.METHODS: MEDLINE, EMBASE and SCOPUS were searched using keywords such as sinu... AIM: To investigate the effectiveness of mesenchymal stem cells(MSCs) in maxillary sinus augmentation(MSA), with various scaffold materials.METHODS: MEDLINE, EMBASE and SCOPUS were searched using keywords such as sinus graft, MSA, maxillary sinus lift, sinus floor elevation, MSC and cellbased, in different combinations. The searches included full text articles written in English, published over a 10-year period(2004-2014). Inclusion criteria were clinical/radiographic and histologic/ histomorphometric studies in humans and animals, on the use of MSCs in MSA. Meta-analysis was performed only for experimental studies(randomized controlled trials and controlled trials) involving MSA, with an outcome measurement of histologic evaluation with histomorphometric analysis reported. Mean and standard deviation values of newly formed bone from each study were used, and weighted mean values were assessed to account for the difference in the number of subjects among the different studies. To compare the results between the test and the control groups, the differences of regenerated bone in mean and 95% confidence intervals were calculated.RESULTS: Thirty-nine studies(18 animal studies and 21 human studies) published over a 10-year period(between 2004 and 2014) were considered to be eligible for inclusion in the present literature review. These studies demonstrated considerable variation with respect to study type, study design, follow-up, and results. Metaanalysis was performed on 9 studies(7 animal studies and 2 human studies). The weighted mean difference estimate from a random-effect model was 9.5%(95%CI: 3.6%-15.4%), suggesting a positive effect of stem cells on bone regeneration. Heterogeneity was measured by the I2 index. The formal test confirmed the presence of substantial heterogeneity(I2 = 83%, P < 0.0001). In attempt to explain the substantial heterogeneity observed, we considered a meta-regression model with publication year, support type(animal vs humans) andfollow-up length(8 or 12 wk) as covariates. After adding publication year, support type and follow-up length to the meta-regression model, heterogeneity was no longer significant(I2 = 33%, P = 0.25).CONCLUSION: Several studies have demonstrated the potential for cell-based approaches in MSA; further clinical trials are needed to confirm these results. 展开更多
关键词 MESENCHYMAL stem cells maxillary sinus sinus FLOOR augmentation Scaffolds BONE REGENERATION
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A Large Calcifying Cystic Odontogenic Tumor Occupying the Maxillary Sinus: A Case Report and Review of Literature
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作者 Hiroshi Nakamura Shigehiro Tamaki +3 位作者 Nobuhiro Ueda Nobuhiro Yamakawa Yuichiro Imai Tadaaki Kirita 《Open Journal of Stomatology》 2017年第5期291-298,共8页
Calcifying cystic odontogenic tumor (CCOT) is an uncommon benign cystic neoplasm of the jaw that develops from the odontogenic epithelium. It is clinically characterized as a painless—slow-growing tumor that affects ... Calcifying cystic odontogenic tumor (CCOT) is an uncommon benign cystic neoplasm of the jaw that develops from the odontogenic epithelium. It is clinically characterized as a painless—slow-growing tumor that affects the maxilla as well as the mandible, and generally occurs in young adults in the third or fourth decade of life. Herein, we present the case of a 16-year-old Japanese boy who showed a CCOT in the maxillary sinus. Panoramic radiography showed a unilocular lesion in the left maxillary sinus. Computed tomography showed an approximately 5-cm well-defined unilocular expansile lesion with multiple radiopaque calcific specks, arising from the left maxillary alveolar ridge. The lesion was surgically removed, under general anesthesia, and the patient was followed up for 3 years after the surgery, and there have not been any signs of recurrence. 展开更多
关键词 Calcifying CYSTIC ODONTOGENIC Tumor maxillary sinus GHOST Cells
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The Importance of Three-Dimensional Imaging from CBCT in Elucidating a Well-Defined Radiolucency Image within the Maxillary Sinus: A Case Report
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作者 Ricardo Alves de Mesquita Cláudia Borges Brasileiro Tania Mara Pimenta Amaral 《Open Journal of Radiology》 2014年第3期255-259,共5页
This study describes a case of antral septum with alveolar process extension that is identified using cone-beam computed tomography (CBCT). Periapical radiolucency was observed in the maxillary sinus, and clinical and... This study describes a case of antral septum with alveolar process extension that is identified using cone-beam computed tomography (CBCT). Periapical radiolucency was observed in the maxillary sinus, and clinical and radiographic examinations ruled out the possibility of odontogenic lesions. CBCT was performed to elucidate the radiolucency identified using periapical radiography. A 3-D image indicated that the maxillary sinus extended into the alveolar process toward the palatal cortical bone in the region of the maxillary right first molar, as well as an antral septum extending from the inferior and lateral wall of the right maxillary sinus. CBCT is an important tool for use in dental practice because CBCT images reveal the entire volume of the maxillary sinus and allow for identification of patient anatomy and anatomical variations, which is essential for planning appropriate surgical interventions. 展开更多
关键词 Diagnostic Imaging CONE-BEAM COMPUTED Tomography RADIOGRAPHY maxillary sinus
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Minimally invasive maxillary sinus augmentation with simultaneous implantation on an elderly patient:A case report
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作者 Shi-Hui Yang Wan-Qi Yu +6 位作者 Jing-Jie Zhang Zhe Zhou Jun-Yan Wang Rui-Ning Shi Yan-Min Zhou Jing-Hui Zhao Fan-Rong Meng 《World Journal of Clinical Cases》 SCIE 2020年第24期6408-6417,共10页
BACKGROUND In this case study,a minimally invasive transalveolar approach using platelet-rich fibrin and bone substitute with simultaneous implantation was carried out in an elderly patient.We analyzed the cone-beam c... BACKGROUND In this case study,a minimally invasive transalveolar approach using platelet-rich fibrin and bone substitute with simultaneous implantation was carried out in an elderly patient.We analyzed the cone-beam computed tomography(CBCT)findings to evaluate bone regeneration.CASE SUMMARY A 65-year-old female with no contraindications for dental implants and loss of maxillary bilateral molars is described.Examination by CBCT showed the available vertical bone height in the bilateral posterior maxilla was 0.5-6.8 mm in the left and 2.8-6.5 mm in the right.The patient underwent a transalveolar approach using platelet-rich fibrin and bone substitute with simulataneous placement of an implant 10 mm in length.Six months post-surgery,the implant showed excellent osseointegration with the bone graft.Thereafter,full-ceramic crowns were fitted.Follow-up at 2 years demonstrated satisfactory prognosis.CONCLUSION Platelet-rich fibrin and bone substitute can be used to augment the maxillary sinus with a vertical bone height less than 4 mm. 展开更多
关键词 maxillary sinus augmentation Bone substitute Bone regeneration Plateletrich fibrin Internal sinus floor elevation Case report
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