Parachordoma: Unusual entity at an unusual site

Parachordoma of palm Unusual Case report

Abstract

Parachordoma is a rare tumor of soft tissue with unspecified lineage. According to the World Health Organization (WHO) classification of 2002, the tumour has been included in the same category as mixed tumors and myoepitheliomas. Metastasis and recurrence are rarely reported. We have reported a case report of Parachordoma in Left Palm.
Cytological features revealed moderately cellular aspirates comprised of dual population of epithelioid and spindle shaped cells in a chondroid to myxoid background. Histopathologically, the tumor was composed of lobules of polygonal to spindle shaped cells with pale eosinophilic to clear cytoplasm with mild pleomorphism and infrequent mitotic activity in a chondro myxoid stroma with intervening fibrous tissue. Tumor cells were positive for EMA, S-100 and vimentin on immunohistochemistry(IHC). Occurrence of parachordoma at a rare site prompted us to present this case report.