Fine needle aspiration cytology of primary epithelioid sarcoma of the vulva. A case report.

The cytopathologic features of the fine needle aspiration cytology of the local recurrence of a vulvar epithelioid sarcoma were documented. The cytologic findings included round polygonal cells with abundant eosinophilic cytoplasm and an eccentrically located nucleus. Despite their epithelioid aspect, the cells in the smears had a sarcomatous arrangement, consisting of isolated cells and loosely cohesive groups. The cytologic findings correlated well with the histologic features of the tumor, which consisted of nodules of eosinophilic epithelioid cells. We discuss the clinical characteristics and prognostic factors in this unusual, vulvar location of this soft tissue sarcoma.