PT  - JOURNAL ARTICLE
AU  - MEGAN G. LOCKYER
AU  - DANIEL G. ROSEN
TI  - Extraskeletal Myxoid Chondrosarcoma Presenting as a Plantar Fibroma: Case Report and Review of the Literature
DP  - 2015 Nov 01
TA  - Anticancer Research
PG  - 6171--6174
VI  - 35
IP  - 11
4099  - http://ar.iiarjournals.org/content/35/11/6171.short
4100  - http://ar.iiarjournals.org/content/35/11/6171.full
SO  - Anticancer Res2015 Nov 01; 35
AB  - Background: Extraskeletal myxoid chondrosarcoma is a rare tumor with an indolent course, high propensity for local recurrence, metastases, and propensity for the proximal extremities of middle-aged males. Case Report: We present the case of a 44-year-old man with an extraskeletal myxoid chondrosarcoma in the plantar fascia of the medial arch initially thought to be a plantar fibroma. Magnetic resonance imaging of the lesion demonstrated a lobulated subcutaneous mass plantar to the tarsal bones and inseparable from the fascia. Microscopic examination revealed a lobulated lesion composed of cords and nests of round to spindled malignant cells in a blue-gray myxoid matrix surrounded by fibrous septae. The malignant cells displayed variable positivity for S-100. Conclusion: Plantar extraskeletal myxoid chondrosarcoma is a rare occurrence. It should always be considered in the differential diagnosis of masses arising in the plantar fascia of the foot.