Granular cell myoblastoma of the vulva. report of 4 cases

Abstract
Granular cell myoblastoma is a rare tumor for which the vulvar area is 1 site of predilection. It occurs at any age as a firm, rounded nodule usually not exceeding 3 cm in diameter. This tumor may be derived from Schwann cells. Only 49 cases of granular cell myoblastoma of the vulva have so far been reported.