Radiological features and pathology of extraskeletal mesenchymal chondrosarcoma.
OBJECTIVE
The objective of this study was to elucidate the imaging and pathological features of extraskeletal mesenchymal chondrosarcomas (EMCs).


METHODS
Imaging findings of eight EMC cases were retrospectively analyzed.


RESULTS
Soft tissue masses with different patterns of mineralization were found in five cases on computed tomographic scans. On magnetic resonance images, peripherally located EMCs demonstrated mixed signal intensity on T2-weighted images and heterogeneous enhancement with both calcified and noncalcified areas.


CONCLUSIONS
EMCs exhibited several characteristic imaging features, which when used in combination with the mineralization pattern, enhancement of the calcified area, and signal intensity feature might have diagnostic value for this rare tumor.
Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou City, Jiangsu Province 215006, People's Republic of China.
Yinyin
Y
Chen
Ximing
X
Wang
Lingchuan
L
Guo
Yonggang
Y
Li
Shengming
S
Deng
Yonghao
Y
Liu
Liang
L
Guo
D000328:Adult; D000368:Aged; D001707:Biopsy, Needle; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology; D002114:Calcinosis / Q000000981:diagnostic imaging / Q000473:pathology; D018211:Chondrosarcoma, Mesenchymal / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000628:therapy; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D007090:Image Interpretation, Computer-Assisted; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000473:pathology; D012189:Retrospective Studies; D012494:Sampling Studies; D012680:Sensitivity and Specificity; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000628:therapy; D014057:Tomography, X-Ray Computed / Q000379:methods; D055815:Young Adult