软组织恶性纤维组织细胞瘤的临床病理与影像学分析

Clinical,Pathological and Imaging Features of Malignant Fibrous Histiocytoma on Soft Tissue

目的探讨软组织恶性纤维组织细胞瘤(MFH)的临床病理与影像学特征。资料与方法回顾性分析15例经手术病理证实的软组织MFH患者资料,其中1例行CT检查,14例行MRI检查。结果经CT检查的1例肿瘤呈等密度,瘤内有坏死,增强扫描呈明显不均匀强化。经MRI检查的14例肿瘤在T1WI上均呈低信号,T2WI上均呈混杂高信号。肿瘤内出血8例,肿瘤内坏死或黏液变性14例,肿瘤内钙化1例。11例T2WI上肿瘤内显示低信号分隔样结构。结论 MRI对软组织MFH的诊断具有重要价值,是首选的影像学检查方法 。

Objective To investigate the clinical,pathological and imaging features of MFH in soft tissue.Materials and Methods Fifteen cases of malignant fibrous histiocytoma（MFH）in soft tissue proved by pathology were analyzed.CT scan was performed in one case and magnetic resonance imaging was performed in other 14 patients.Results On plain CT,the tumor was intermediate density with a central necrotic region.Its solid component was markedly enhanced after contrast enhancement.On MRI,all tumors showed low signal intensity on T1-weighted images.On T2-weighted images,tumors displayed inhomogeneous high signal intensity.8 cases with bleedings were detected,necrosis or myxoid degeneration was seen in all 14 ones,and calcifications were showed in one case.Low intense septum structure was noted on T2-weighted images in 11 patients.Conclusion MRI findings of MFH in soft tissue have some characteristic features.MR imaging is very helpful in the diagnosis of MFH in soft tissue and can be a preferred examining method for it.