Extraskeletal mesenchymal chondrosarcoma.
Extraskeletal mesenchymal chondrosarcoma is a rare malignancy. It is characteriged by a bimorphic histologic pattern, with a mesenchymal tissue mixed with malignant hyaline cartilage. It also has high incidence of local recurrence and distant metastasis. All cases have been reported fatal associated with this tumor in spite of complete surgical excision. A 35-year-old female presented with a palpable mass about 5 x 3 x 2.5 cm3 in size over her left forearm and was reported to be an extraskeletal mesenchymal chondrosarcoma. Marginal resection followed by regional radiotherapy was done. No local recurrence or distant metastasis was found two years after surgery. Thorough physical examination, series radiographic studies, and multiple sites of tumor biopsies before radical resection of the tumor may decrease the misdiagnostic rate for extraskeletal mesenchymal chondrosarcoma. Appropriate tumor treatment, close patient follow-up and timely treatment for local recurrence or distant metastasis may increase the survival rate.
Chiang
Chung-Jung
CJ
Department of Orthopedics, China Medical College Hospital, Taichung, Taiwan, ROC.
Fong
Yi-Chin
YC
Hsu
Horng-Chaung
HC
D000328:Adult; D018211:Chondrosarcoma, Mesenchymal / Q000473:pathology*; D005260:Female; D005542:Forearm; D006801:Humans; D012983:Soft Tissue Neoplasms / Q000473:pathology*