Vulvar neoplasm Bartholin gland carcinoma SNOMEDCT_US:399533005 Carcinomas of Bartholin's gland are rare tumors that account for less than 1% of all gynecological malignancies. Two major histological types, squamous cell carcinoma and adenocarcinoma, account for 80% to 90% of primary cases. The remainder are adenoid-cystic, transitional, or undifferentiated carcinomas. SNOMEDCT_US:276876007 UMLS:C0349561 A cancer arising in a cell of the Bartholin gland, a racemose gland located slightly posterior to the opening of the vagina.