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
Objective: The aim of this study was to evaluate intra- and inter-observer reproducibility of sinus x-rays in comparison to sinus computed tomography (CT) in chronic rhinosinusitis (CRS) patients. Methods: This was a ...Objective: The aim of this study was to evaluate intra- and inter-observer reproducibility of sinus x-rays in comparison to sinus computed tomography (CT) in chronic rhinosinusitis (CRS) patients. Methods: This was a prospective controlled study for which 14 adult CRS patients were recruited. Patients underwent a sinus multi-detector CT scan as well as additional sinus x-rays at the same time. Symptom interview and skin prick tests were performed. Lund-Mackay (LM) scores and 43 other findings in paranasal sinuses were analyzed by three blinded observers from CT-scans and x-rays. We compared agreement between sinus CT and x-rays (intra-observer reproducibility) and between three observers (inter-observer reproducibility) by Cohen’s kappa. Results: In at least 90% of the cases, the status of 47/49 structures was detectable in CT scans, whereas the status of only 8/49 structures was detectable in x-rays. The majority of the 25 visualized structures had poor intra-observer and inter-observer reproducibility. Conclusion: Only a few structures can be visualized in paranasal sinus x-rays and compared to paranasal sinus CT-scans, their reproducibility is poor. Our results strongly support the current consensus of radiation dose reduction by limiting the number of x-rays.展开更多
BACKGROUND Lung cancer is often metastasized to the brain,liver,kidneys,bone,bone marrow,and adrenal glands;however,metastasis of primary lung cancer to the paranasal sinuses is extremely rare.CASE SUMMARY In this pap...BACKGROUND Lung cancer is often metastasized to the brain,liver,kidneys,bone,bone marrow,and adrenal glands;however,metastasis of primary lung cancer to the paranasal sinuses is extremely rare.CASE SUMMARY In this paper,we present a case of metastatic tumors of the sinus secondary to lung adenocarcinoma.The patient was a 46-year-old woman who underwent surgical removal of lung carcinoma.Four months after the surgical removal of the lung tumor,the patient presented with epistaxis,and on investigation,the diagnosis was confirmed to be nasal sinus tumors due to metastasis of lung adenocarcinoma.CONCLUSION Thorough investigation of patients with epistaxis and a history of lung cancer is necessary to diagnose metastatic sinus tumors.We reviewed relevant literature and found that there are no characteristic clinical or radiologic features for metastatic sinus tumors;however,the diagnosis can be confirmed by histopathological examination of biopsied tumor sample.展开更多
<strong>Introduction:</strong> Paranasal sinuses mucoceles are benign, epithelial lined, mucus filled lesions, causing destruction of the adjacent sinus walls, and with further gradual extension to adjacen...<strong>Introduction:</strong> Paranasal sinuses mucoceles are benign, epithelial lined, mucus filled lesions, causing destruction of the adjacent sinus walls, and with further gradual extension to adjacent structures, serious morbidities and mortalities may occur. <strong>Objective:</strong> To emphasize on the efficacy of endonasal endoscopic marsupialization in the treatment of paranasal sinus mucoceles. <strong>Method:</strong> Retrospective descriptive study on paranasal sinus mucocele cases operated on endoscopically by the author (AAM), in the 10-year-period from to 2009-2019. <strong>Result:</strong> Total of 23 cases were included, 16 were males and 7 females, age ranging between 14 - 76 years, with a mean age of 45 years Location of mucoceles varied between: Frontal 7 cases (30%), Fronto-ethmoidal 6 cases (26%), Isolated Ethmoidal accounted for 3 cases (13%), sphenoidal 4 cases (17%), maxillary were 3 cases (13%) all of the 23 cases underwent endonasal endoscopic complete marsupialization, none of them required combination with external approach in-spite of different locations and complications, with no recurrence in a mean follow up period of 2.4 years. <strong>Conclusion:</strong> Endonasal endoscopic approach is a safe, efficient approach in the treatment of most paranasal sinus mucocele case in their different presentations and locations.展开更多
Background: After the failure of medical treatment, the surgery of chronic rhinosinusitis (CRS) is planned according to endoscopic and paranasal sinus computed tomography (CT) findings. Objective: The aim of this pros...Background: After the failure of medical treatment, the surgery of chronic rhinosinusitis (CRS) is planned according to endoscopic and paranasal sinus computed tomography (CT) findings. Objective: The aim of this prospective study was to evaluate whether this study method might be eligible in studies aiming at radiation dose reduction. Sinus CT scans were chosen as a model because of the high variation of the radiological anatomy of surgically important sinonasal structures. We hypothesized that 3 mm-slice-thick reconstruction CT had poor reproducibility. Methods: 59 CRS patients underwent routine multi-detector sinus CT (CT<sub>MD</sub>). CT<sub>3mm</sub> was reconstructed from CT<sub>MD</sub> data-sets. Lund-Mackay (LM) scores and 43 other structural parameters were analyzed blinded. Agreement was studied between CT<sub>MD</sub> and CT<sub>3mm</sub> (intra-observer reproducibility), and between three observers (inter-observer reproducibility) by using Cohen’s kappa. Results: The inter-observer agreement was moderate (kappa 0.4 - 0.6, p < 0.01) in the majority of structures of CT<sub>3mm</sub> scans. The intra-observer reproducibility of CT<sub>3mm</sub> scans was very good in most structures, however, it was poor in important structures such as frontal and spheno-ethmoid recess, lamina papyracae, and location of optic nerve or anterior ethmoidal artery. The grade of surgeon’s confidence of CT<sub>3mm</sub> in comparison to CT<sub>MD</sub> was lower (kappa 0.2 - 0.4, P < 0.05). Conclusion: This methodology might have some use in studies aiming at radiation dose reduction. As was expected, 3 mm-slice-thick reconstruction CT had poor reproducibility and surgeon’s confidence. More recent methods such as cone beam computed tomography scans have nowadays more relevant dose reduction potential.展开更多
BACKGROUND Sinonasal teratocarcinosarcoma(SNTCS)is a rare and highly invasive neoplasm originating from the nasal cavity and sinuses.Typically,it exhibits an invasive behavior towards adjacent structures;however,in ex...BACKGROUND Sinonasal teratocarcinosarcoma(SNTCS)is a rare and highly invasive neoplasm originating from the nasal cavity and sinuses.Typically,it exhibits an invasive behavior towards adjacent structures;however,in exceptional instances,it may infiltrate the intracranial compartment.Due to the tumor's rarity and lack of distinctive features on computed tomography(CT)and magnetic resonance imaging(MRI)images,SNTCS is often misdiagnosed.CASE SUMMARY In this study,we present a case of SNTCS in a 56-year-old patient who exhibited unexplained cognitive impairment before admission.CT and MRI scans revealed the presence of a mass in the right nasal cavity,with lesions extending to the right ethmoid sinus and right frontal region.Subsequently,the patient underwent pathological examination for confirmation and received surgical intervention to excise the tumor.The future advancement in our understanding of this disease will significantly contribute to the precise diagnosis and treatment of SNTCS.CONCLUSION SNTCS is an exceptionally rare malignant tumor that originates from the nasal cavity and paranasal sinuses,presenting a diagnostic challenge due to its nonspecific imaging findings.MRI accurately delineates the location,morphological characteristics,size,internal structure,extent of surrounding involvement,and metabolic information of the lesion.These aspects play a pivotal role in the precise localization and qualitative assessment of SNTCS.Nevertheless,a definitive diagnosis still requires a pathological biopsy.展开更多
BACKGROUND Primary non-Hodgkin’s lymphoma of the frontal sinus is extremely rare.In addition,Epstein-Barr virus(EBV)has been reported to play a role in the development of human immunodeficiency virus(HIV)-related mal...BACKGROUND Primary non-Hodgkin’s lymphoma of the frontal sinus is extremely rare.In addition,Epstein-Barr virus(EBV)has been reported to play a role in the development of human immunodeficiency virus(HIV)-related malignant lymphomas.To the best of our knowledge,there is no report for the HIVassociated,EBV-positive primary diffuse large B-cell lymphoma(DLBCL)in the frontal sinus.CASE SUMMARY We present a unique case of HIV-associated,EBV-positive DLBCL in the frontal sinus in a 46-year-old man.Computed tomography of paranasal sinuses revealed dense opacification of the right frontal sinus with combined soft tissue swelling.Based on the clinical and radiological findings,the initial diagnosis was complicated frontal sinusitis,presenting Pott’s puffy tumor.Unexpectedly,HIV testing was positive on preoperative laboratory test,and the frontal sinus lesion was confirmed as EBV-positive DLBCL on biopsy.CONCLUSION Through this article,we suggest that EBV-positive DLBCL should be considered as possible diagnosis for patients with nonspecific space-occupying lesion of the paranasal sinuses.We also highlight an importance of clinical suspicion in diagnosing HIV infection because HIV serology is not routinely tested in patients with paranasal sinus problem.展开更多
Cholesteatomas are often observed in the middle ear or mastoid cavity. However, cholesteatomas in areas other than the middle ear or mastoid are extremely rare and thus are not often reported in the literature. We rec...Cholesteatomas are often observed in the middle ear or mastoid cavity. However, cholesteatomas in areas other than the middle ear or mastoid are extremely rare and thus are not often reported in the literature. We recently treated an 18-year-old female patient with an incidentally detected maxillary sinus mass. A paranasal sinus computed tomography examination revealed a cystic lesion in the left maxillary sinus infiltrating the posterolateral walls of the left maxillary sinus. An endoscopic operation was performed for definitive diagnosis. Histopathological examination of the mass confirmed the diagnosis of cholesteatoma. Despite the rarity of paranasal cholesteatoma in comparison with cholesteatomas in the tympanum, a few cases involving the frontal sinus have been reported. However, retromaxillary cholesteatoma is even less common than sinus cholesteatoma and is reported rarely. To our knowledge, this is the first reported case of a maxillary cholesteatoma originating from the retromaxillary area. For this reason, we present this case along with a literature review.展开更多
Sex estimation is a crucial step to outline the biological profile of unknown human remains.The frontal and maxillary sinuses have unique anatomical features and can be utilized efficiently in individual identificatio...Sex estimation is a crucial step to outline the biological profile of unknown human remains.The frontal and maxillary sinuses have unique anatomical features and can be utilized efficiently in individual identification.Previous studies investigated the frontal and maxillary sinus indexes separately for sex prediction.However,comparing the predictive value of the frontal sinus index(FSI)to the maxillary sinus index(MSI)has not been investigated yet.This study aimed to evaluate the sex predicting value of FSI compared to MSI assessed on digital lateral cephalometry.This retrospective cross-sectional study included 88 digital lateral cephalometric images of known sex(44 males and 44 females)and age(20-50 years).Two radiologists measured the maximum anteroposterior sinus width and height of the frontal sinus and maxillary sinus.Then,the sinus index was calculated for each radiograph.The obtained frontal and maxillary sinuses parameters were tabulated,along with the patient’s sex and age,and subjected to statistical analysis.Our results revealed significant differences between males and females regarding frontal sinus width,FSI,and MSI.The discriminant function analysis obtained in this study accurately predicted sex with an overall accuracy of 71.6%(81.8%of males and 61.4%of females)using FSI,and 60.2%(63.6%in females and 56.8%in males)using MSI.Frontal and maxillary sinus indexes can be useful tools for sex prediction.Discriminant function equations were developed for both the frontal and maxillary sinus indexes with higher accuracy rates for FSI compared to MSI.展开更多
文摘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.
文摘Objective: The aim of this study was to evaluate intra- and inter-observer reproducibility of sinus x-rays in comparison to sinus computed tomography (CT) in chronic rhinosinusitis (CRS) patients. Methods: This was a prospective controlled study for which 14 adult CRS patients were recruited. Patients underwent a sinus multi-detector CT scan as well as additional sinus x-rays at the same time. Symptom interview and skin prick tests were performed. Lund-Mackay (LM) scores and 43 other findings in paranasal sinuses were analyzed by three blinded observers from CT-scans and x-rays. We compared agreement between sinus CT and x-rays (intra-observer reproducibility) and between three observers (inter-observer reproducibility) by Cohen’s kappa. Results: In at least 90% of the cases, the status of 47/49 structures was detectable in CT scans, whereas the status of only 8/49 structures was detectable in x-rays. The majority of the 25 visualized structures had poor intra-observer and inter-observer reproducibility. Conclusion: Only a few structures can be visualized in paranasal sinus x-rays and compared to paranasal sinus CT-scans, their reproducibility is poor. Our results strongly support the current consensus of radiation dose reduction by limiting the number of x-rays.
文摘BACKGROUND Lung cancer is often metastasized to the brain,liver,kidneys,bone,bone marrow,and adrenal glands;however,metastasis of primary lung cancer to the paranasal sinuses is extremely rare.CASE SUMMARY In this paper,we present a case of metastatic tumors of the sinus secondary to lung adenocarcinoma.The patient was a 46-year-old woman who underwent surgical removal of lung carcinoma.Four months after the surgical removal of the lung tumor,the patient presented with epistaxis,and on investigation,the diagnosis was confirmed to be nasal sinus tumors due to metastasis of lung adenocarcinoma.CONCLUSION Thorough investigation of patients with epistaxis and a history of lung cancer is necessary to diagnose metastatic sinus tumors.We reviewed relevant literature and found that there are no characteristic clinical or radiologic features for metastatic sinus tumors;however,the diagnosis can be confirmed by histopathological examination of biopsied tumor sample.
文摘<strong>Introduction:</strong> Paranasal sinuses mucoceles are benign, epithelial lined, mucus filled lesions, causing destruction of the adjacent sinus walls, and with further gradual extension to adjacent structures, serious morbidities and mortalities may occur. <strong>Objective:</strong> To emphasize on the efficacy of endonasal endoscopic marsupialization in the treatment of paranasal sinus mucoceles. <strong>Method:</strong> Retrospective descriptive study on paranasal sinus mucocele cases operated on endoscopically by the author (AAM), in the 10-year-period from to 2009-2019. <strong>Result:</strong> Total of 23 cases were included, 16 were males and 7 females, age ranging between 14 - 76 years, with a mean age of 45 years Location of mucoceles varied between: Frontal 7 cases (30%), Fronto-ethmoidal 6 cases (26%), Isolated Ethmoidal accounted for 3 cases (13%), sphenoidal 4 cases (17%), maxillary were 3 cases (13%) all of the 23 cases underwent endonasal endoscopic complete marsupialization, none of them required combination with external approach in-spite of different locations and complications, with no recurrence in a mean follow up period of 2.4 years. <strong>Conclusion:</strong> Endonasal endoscopic approach is a safe, efficient approach in the treatment of most paranasal sinus mucocele case in their different presentations and locations.
文摘Background: After the failure of medical treatment, the surgery of chronic rhinosinusitis (CRS) is planned according to endoscopic and paranasal sinus computed tomography (CT) findings. Objective: The aim of this prospective study was to evaluate whether this study method might be eligible in studies aiming at radiation dose reduction. Sinus CT scans were chosen as a model because of the high variation of the radiological anatomy of surgically important sinonasal structures. We hypothesized that 3 mm-slice-thick reconstruction CT had poor reproducibility. Methods: 59 CRS patients underwent routine multi-detector sinus CT (CT<sub>MD</sub>). CT<sub>3mm</sub> was reconstructed from CT<sub>MD</sub> data-sets. Lund-Mackay (LM) scores and 43 other structural parameters were analyzed blinded. Agreement was studied between CT<sub>MD</sub> and CT<sub>3mm</sub> (intra-observer reproducibility), and between three observers (inter-observer reproducibility) by using Cohen’s kappa. Results: The inter-observer agreement was moderate (kappa 0.4 - 0.6, p < 0.01) in the majority of structures of CT<sub>3mm</sub> scans. The intra-observer reproducibility of CT<sub>3mm</sub> scans was very good in most structures, however, it was poor in important structures such as frontal and spheno-ethmoid recess, lamina papyracae, and location of optic nerve or anterior ethmoidal artery. The grade of surgeon’s confidence of CT<sub>3mm</sub> in comparison to CT<sub>MD</sub> was lower (kappa 0.2 - 0.4, P < 0.05). Conclusion: This methodology might have some use in studies aiming at radiation dose reduction. As was expected, 3 mm-slice-thick reconstruction CT had poor reproducibility and surgeon’s confidence. More recent methods such as cone beam computed tomography scans have nowadays more relevant dose reduction potential.
文摘BACKGROUND Sinonasal teratocarcinosarcoma(SNTCS)is a rare and highly invasive neoplasm originating from the nasal cavity and sinuses.Typically,it exhibits an invasive behavior towards adjacent structures;however,in exceptional instances,it may infiltrate the intracranial compartment.Due to the tumor's rarity and lack of distinctive features on computed tomography(CT)and magnetic resonance imaging(MRI)images,SNTCS is often misdiagnosed.CASE SUMMARY In this study,we present a case of SNTCS in a 56-year-old patient who exhibited unexplained cognitive impairment before admission.CT and MRI scans revealed the presence of a mass in the right nasal cavity,with lesions extending to the right ethmoid sinus and right frontal region.Subsequently,the patient underwent pathological examination for confirmation and received surgical intervention to excise the tumor.The future advancement in our understanding of this disease will significantly contribute to the precise diagnosis and treatment of SNTCS.CONCLUSION SNTCS is an exceptionally rare malignant tumor that originates from the nasal cavity and paranasal sinuses,presenting a diagnostic challenge due to its nonspecific imaging findings.MRI accurately delineates the location,morphological characteristics,size,internal structure,extent of surrounding involvement,and metabolic information of the lesion.These aspects play a pivotal role in the precise localization and qualitative assessment of SNTCS.Nevertheless,a definitive diagnosis still requires a pathological biopsy.
文摘BACKGROUND Primary non-Hodgkin’s lymphoma of the frontal sinus is extremely rare.In addition,Epstein-Barr virus(EBV)has been reported to play a role in the development of human immunodeficiency virus(HIV)-related malignant lymphomas.To the best of our knowledge,there is no report for the HIVassociated,EBV-positive primary diffuse large B-cell lymphoma(DLBCL)in the frontal sinus.CASE SUMMARY We present a unique case of HIV-associated,EBV-positive DLBCL in the frontal sinus in a 46-year-old man.Computed tomography of paranasal sinuses revealed dense opacification of the right frontal sinus with combined soft tissue swelling.Based on the clinical and radiological findings,the initial diagnosis was complicated frontal sinusitis,presenting Pott’s puffy tumor.Unexpectedly,HIV testing was positive on preoperative laboratory test,and the frontal sinus lesion was confirmed as EBV-positive DLBCL on biopsy.CONCLUSION Through this article,we suggest that EBV-positive DLBCL should be considered as possible diagnosis for patients with nonspecific space-occupying lesion of the paranasal sinuses.We also highlight an importance of clinical suspicion in diagnosing HIV infection because HIV serology is not routinely tested in patients with paranasal sinus problem.
文摘Cholesteatomas are often observed in the middle ear or mastoid cavity. However, cholesteatomas in areas other than the middle ear or mastoid are extremely rare and thus are not often reported in the literature. We recently treated an 18-year-old female patient with an incidentally detected maxillary sinus mass. A paranasal sinus computed tomography examination revealed a cystic lesion in the left maxillary sinus infiltrating the posterolateral walls of the left maxillary sinus. An endoscopic operation was performed for definitive diagnosis. Histopathological examination of the mass confirmed the diagnosis of cholesteatoma. Despite the rarity of paranasal cholesteatoma in comparison with cholesteatomas in the tympanum, a few cases involving the frontal sinus have been reported. However, retromaxillary cholesteatoma is even less common than sinus cholesteatoma and is reported rarely. To our knowledge, this is the first reported case of a maxillary cholesteatoma originating from the retromaxillary area. For this reason, we present this case along with a literature review.
文摘Sex estimation is a crucial step to outline the biological profile of unknown human remains.The frontal and maxillary sinuses have unique anatomical features and can be utilized efficiently in individual identification.Previous studies investigated the frontal and maxillary sinus indexes separately for sex prediction.However,comparing the predictive value of the frontal sinus index(FSI)to the maxillary sinus index(MSI)has not been investigated yet.This study aimed to evaluate the sex predicting value of FSI compared to MSI assessed on digital lateral cephalometry.This retrospective cross-sectional study included 88 digital lateral cephalometric images of known sex(44 males and 44 females)and age(20-50 years).Two radiologists measured the maximum anteroposterior sinus width and height of the frontal sinus and maxillary sinus.Then,the sinus index was calculated for each radiograph.The obtained frontal and maxillary sinuses parameters were tabulated,along with the patient’s sex and age,and subjected to statistical analysis.Our results revealed significant differences between males and females regarding frontal sinus width,FSI,and MSI.The discriminant function analysis obtained in this study accurately predicted sex with an overall accuracy of 71.6%(81.8%of males and 61.4%of females)using FSI,and 60.2%(63.6%in females and 56.8%in males)using MSI.Frontal and maxillary sinus indexes can be useful tools for sex prediction.Discriminant function equations were developed for both the frontal and maxillary sinus indexes with higher accuracy rates for FSI compared to MSI.
