摘要
Abstract
Objective To analyze the imaging features of synovial sarcoma (SS) so as to improve awareness. Methods MRI imaging data and pathological examination results of 6 patients with SS confirmed by pathological examination in our hospital were retrospectively analyzed. Results There were 2 patients with lesion located in knee joint, onc in elbow joint, one in fold inguen, one in cnemis and one in lumbar vertebrae. MRI imaging manifestations: one tumor located in vertebra lumbalis eroded the body of vertebra, obscure boundary and encroached the greater psoas muscle with lymphadenectasis; 5 patients'tumors with round or ellipse shapes showed well-defined margins, including 3 soft tissue tumors with slightly hyperintense on Tl WI, promiscuous hyperin-tense on T2WI, dispersive mottling and line disjunctive hypointensity and equal, high and low signals of cystic forms. The enhancement of synovial sarcomas was usually pronounced in inhomogeneous, and line separation was obviously strengthened; two tumors located in interspace of elbow joint and inguen muscles showed little volumes, slightly hyperintense on T1WI, hyperintense on T2WI, symmetrical signal and thick tumors wall. Conclusion SSMRI manifestations have a certain marks. Soft tissue masses with well-defined, MR images may indicate that hypointensity is divided into high, equal and low signals on T2WI, intensive parenchyma component of tumors by enhancement and should be considered as SS, but final diagnosis should depended on pathomorphology, immu-nohistochemistry and SYT-SSX fused gene examinations.关键词
肉瘤,滑膜/磁共振成像Key words
Sarcoma, synovium/ Magnetic resonance imaging分类
医药卫生
