BACKGROUND: Leiomyosarcoma of the vulva is a rare gynecologic malignancy,comprising approximately 1% of vulvar cancers. CASE: A 36-year-old woman was referred for a slowly growing painless vulvar Mass that was initially thought to be a Bartholin's duct cyst but was cancerous upon biopsy. A modified radical vulvectomy was performed, and pathology revealed a grade I leiomyosarcoma. Thirteen months later, the tumor had not recurred. CONCLUSION: Vulvar cancer must be considered in patients with. a suspected Bartholin duct cyst that demonstrates. atypical features. A biopsy should be obtained if the mass appears firm or solid on palpation, is ulcerated or presents in a slightly different location from the usual area of the Bartholin gland.
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