Objective: To study the imaging features of extra-axial tumors and tumor-likelesions involving both middle and posterior cranial fossae and to make a classification. Methods:Sixty cases of pathologically confirmed ext...Objective: To study the imaging features of extra-axial tumors and tumor-likelesions involving both middle and posterior cranial fossae and to make a classification. Methods:Sixty cases of pathologically confirmed extra-axil tumors and tumor-like lesions involving bothmiddle and posterior cranial fossae were analyzed. They were divided into central and lateral types,the latter of which were subdivided into three types: middle cranial fossae type, posterior cranialfossae type and the over-riding type. The constitution and imaging features of each type wereanalyzed. Results: There were 12 cases of central type, including chordoma (n=5), pituitary adenoma(n=3), nasopharyngeal carcinoma (n=2), craniopharyn-gioma (n=1) and meningioma (n=l). 48 cases oflateral type including trigeminal nerve tumors (n=14), meningioma (n=12), epidermoid cyst (n=11),dural cavernous hemangioma (n=4), dermoid cyst (n=2), metastasis (n=2), hemangiopericytoma (n=1),paraganglioma of glonius jugular (n=1) and nasopharyngeal carcinoma (n=1). Each type of the lesionshad its own shape features, some of which were characteristic for some specific tumors. Most of thetumors and tumor-like lesions could be qualitatively diagnosed according to their imagingcharacteristics and the extent of the lesions could be defined definitely. Conclusion: It is helpfulto categorize extra-axial tumors and tumor-like lesions involving both middle and posterior cranialfossae according to their location for qualitative diagnosis and description of the extent of theselesions. It is of great clinical value in providing more precise and thorough imaging informationfor planning therapeutic methods and route of operation.展开更多
Double aortic arch is a common form of complete vascular ring that encircles both the trachea and the esophagus, and presents with various respiratory and esophageal symptoms, usually in the pediatric population. We p...Double aortic arch is a common form of complete vascular ring that encircles both the trachea and the esophagus, and presents with various respiratory and esophageal symptoms, usually in the pediatric population. We present a case of double aortic arch in an adult patient that manifested as massive upper gastrointestinal bleeding after prolonged nasogastric intubation.展开更多
OBJECTIVE:Allergic rhinitis(AR) is a common health problem.Summer acupoint application treatment(SAAT) is reported to effectively treat and prevent AR from seasonal onset.In the present study,we aimed to evaluate its ...OBJECTIVE:Allergic rhinitis(AR) is a common health problem.Summer acupoint application treatment(SAAT) is reported to effectively treat and prevent AR from seasonal onset.In the present study,we aimed to evaluate its effects,especially on the course of AR,through a retrospective study.METHOD:A cross-sectional multicenter study was performed based on patients treated between 2008 and 2009 in 13 clinical centers in China.A total of 1058 outpatients aged ≥2 years with documented AR and ≥1 year SAAT were eligible for enrollment.A case report form(CRF) was completed by both patient and doctor.The CRF was designed to collect data on the patient's history of SAAT,AR condition,and self-reported health condition.The outcomes(dependent variables) were incidence and intensity of AR and concomitant medications used.Data were analyzed with ordinal logistic regression(OLR).RESULTS:Treatment course and seasonal pattern of AR were related to all dependent variables positively.After controlling for sample bias and confounding factors,the findings suggested that a 3-year treatment course had better efficacy(OR/incidence of AR:2.57,95%CI:1.76-3.76;OR/intensity of AR:2.17,95%CI:1.50-3.17;OR/concomitant medications:2.20,95% CI:1.50-3.23) compared with a 2-year or less treatment course.CONCLUSION:The results showed that:1)the length of treatment course was positively associated with the efficacy of SAAT(the longer the treatment course,the better the efficacy);and 2)SAAT was more efficacious in treating seasonal AR than non-seasonal AR.展开更多
文摘Objective: To study the imaging features of extra-axial tumors and tumor-likelesions involving both middle and posterior cranial fossae and to make a classification. Methods:Sixty cases of pathologically confirmed extra-axil tumors and tumor-like lesions involving bothmiddle and posterior cranial fossae were analyzed. They were divided into central and lateral types,the latter of which were subdivided into three types: middle cranial fossae type, posterior cranialfossae type and the over-riding type. The constitution and imaging features of each type wereanalyzed. Results: There were 12 cases of central type, including chordoma (n=5), pituitary adenoma(n=3), nasopharyngeal carcinoma (n=2), craniopharyn-gioma (n=1) and meningioma (n=l). 48 cases oflateral type including trigeminal nerve tumors (n=14), meningioma (n=12), epidermoid cyst (n=11),dural cavernous hemangioma (n=4), dermoid cyst (n=2), metastasis (n=2), hemangiopericytoma (n=1),paraganglioma of glonius jugular (n=1) and nasopharyngeal carcinoma (n=1). Each type of the lesionshad its own shape features, some of which were characteristic for some specific tumors. Most of thetumors and tumor-like lesions could be qualitatively diagnosed according to their imagingcharacteristics and the extent of the lesions could be defined definitely. Conclusion: It is helpfulto categorize extra-axial tumors and tumor-like lesions involving both middle and posterior cranialfossae according to their location for qualitative diagnosis and description of the extent of theselesions. It is of great clinical value in providing more precise and thorough imaging informationfor planning therapeutic methods and route of operation.
文摘Double aortic arch is a common form of complete vascular ring that encircles both the trachea and the esophagus, and presents with various respiratory and esophageal symptoms, usually in the pediatric population. We present a case of double aortic arch in an adult patient that manifested as massive upper gastrointestinal bleeding after prolonged nasogastric intubation.
基金Suppotred by the funds of Key Projects in the National S&T Pillar Program(No.2008BAI53B061)Major National S&T Program(No.2008ZX10005-013)
文摘OBJECTIVE:Allergic rhinitis(AR) is a common health problem.Summer acupoint application treatment(SAAT) is reported to effectively treat and prevent AR from seasonal onset.In the present study,we aimed to evaluate its effects,especially on the course of AR,through a retrospective study.METHOD:A cross-sectional multicenter study was performed based on patients treated between 2008 and 2009 in 13 clinical centers in China.A total of 1058 outpatients aged ≥2 years with documented AR and ≥1 year SAAT were eligible for enrollment.A case report form(CRF) was completed by both patient and doctor.The CRF was designed to collect data on the patient's history of SAAT,AR condition,and self-reported health condition.The outcomes(dependent variables) were incidence and intensity of AR and concomitant medications used.Data were analyzed with ordinal logistic regression(OLR).RESULTS:Treatment course and seasonal pattern of AR were related to all dependent variables positively.After controlling for sample bias and confounding factors,the findings suggested that a 3-year treatment course had better efficacy(OR/incidence of AR:2.57,95%CI:1.76-3.76;OR/intensity of AR:2.17,95%CI:1.50-3.17;OR/concomitant medications:2.20,95% CI:1.50-3.23) compared with a 2-year or less treatment course.CONCLUSION:The results showed that:1)the length of treatment course was positively associated with the efficacy of SAAT(the longer the treatment course,the better the efficacy);and 2)SAAT was more efficacious in treating seasonal AR than non-seasonal AR.
