CT characteristics of solitary fibrous tumor of the mediastinum and analysis of 5 misdiagnosed cases

VernacularTitle:纵隔孤立性纤维性肿瘤的CT 表现及其误诊分析
Author: Jiayan LI ; Chunping GAO ; Wenzhao YUAN ; Hailing OU ; Min LI
Publication Type:Journal Article
Keywords: solitary fibrous tumor; mediastinal; computed tomography
From: Journal of Practical Radiology 2014;(6):930-932
CountryChina
Language:Chinese
Abstract: Objective To investigate CT features of solitary fibrous tumor of the mediastinum(SFTM),and to analyze the causes of misdiagnosis of this disease.Methods CT features of 5 patients of SFTM confirmed operatively and pathologically were retrospec-tively analyzed.All patients underwent before operation but were misdiagnosed.Results 3 cases were located in right mediastinum with oval-shap,well-defined margin,and “pleural tail sign”,2 cases were located in right thoracis cavity with unwell-defined margin, and in the adjacent lung were oppressed.In all 5 patients,the mean median of tumors was 1 1.5 cm(8.6-1 5 cm),non-homogeneous density of tumors were seen on plain CT scans,and obvious non-homogeneous enhancement with“geographic pattern”on contrast-en-hanced CT.Conclusion CT can clearly reveal the size and the appearance of SFTM,adjacent architectures,the final diagnosis de-pends on histopathological and immunohistochemical findings of the tumors.To un-know is the main caused of misdiagnosis of medi-astinal SFT.