Solitary fibrous tumor arising slowly in the vulva over 10 years: case report and review.

Solitary fibrous tumor (SFT), which was first described as a pleural lesion by Klemperer and Rabin in 1931, is a rare, slow-growing neoplasm characterized by the proliferation of fibroblast-like spindle cells arranged in a patternless manner with few nuclear atypia. Extrathoracic SFT have increasingly been recognized, but those in the genital tract are extremely rare. Gynecological SFT behave as tumors with low malignant potential to recur, metastasize, or affect nearby organs resulting in infertility. We report a case of vulvar SFT slowly growing for 10 years, and propose a strategy for the diagnosis and treatment of gynecological SFT.