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Undifferentiated pleomorphic sarcoma presenting as an exophytic pedunculated tumor on the left scapula

Cerejeira, A.; Gomes, N.; Costa-Silva, M.; Moreira, E.; Azevedo, F.

Dermatology Online Journal 25(7)

2019

ISSN/ISBN: 1087-2108
PMID: 31450284
Document Number: 697797
Undifferentiated pleomorphic sarcoma is a common soft tissue sarcoma. Unfortunately, any attempt to describe the line of differentiation fails. It represents a final common pathway in tumors that undergoes progression towards dedifferentiation. We report a man with an undifferentiated pleomorphic sarcoma presenting as an exophytic pedunculated tumor of the left scapula. Histopathology analysis revealed spindle-shaped cells with great pleomorphism and numerous mitoses. Immunohistochemistry showed diffuse expression of vimentin. Wide local excision was performed after an oncology consultation. After two-years of follow-up, the patient has shown no evidence of recurrence or metastases.

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