A revisit of MRI analysis for synovial sarcoma.
We evaluated magnetic resonance imaging (MRI) findings of synovial sarcomas in 22 patients, and the most common MRI findings were oval and well-defined nodular masses with heterogeneous intermediate signal intensity (SI) on T1 weighted images (WI), high SI on T2-WI and heterogeneous contrast enhancement. A cystic component was seen in 77%, intratumoral hemorrhage in 73%, and calcification in three monophasic sarcomas. Metastases were noted in lung (mostly biphasic type), lymph node, and bone. Posttreatment changes revealed diffusely increased S1 on T2-W1 and slightly diffuse contrast enhancement with feathery appearance. Morphology and MR signal characteristics assist in synovial sarcoma management.
Department of Diagnostic Radiology, University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA.
R F
RF
Valenzuela
E E
EE
Kim
J G
JG
Seo
S
S
Patel
A W
AW
Yasko
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013584:Sarcoma, Synovial / Q000473:pathology*