Foot fibromatosis

Case contributed by Mohamed Saber
Diagnosis certain


Left foot pain and soft tender swelling on the medial aspect

Patient Data

Age: 35 years
Gender: Female

A lobulated mass lesion is seen at the medial aspect of the hindfoot related to the tarsal tunnel. It elicits iso intensity to skeletal muscle in T1, intermediate to high signal in T2, and high signal in PD fat sat.

Annotated image

Annotated images highlighting the outline of the mass.

Case Discussion

Fibromatosis is a benign fibrous tissue proliferation with infiltrative growth and a tendency for local recurrence without metastasis. DD of our case includes;  fibrous histiocytoma, giant cell tumor of the tendon sheath, hemangioma, neurogenic tumor, or soft tissue sarcoma. Histopathology after an excisional biopsy revealed fibromatosis, with benign behavior but may recur.

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