Primary　vulvar　cancer　is　a　rare　disease　with　an　incidence　of　2-3　per　100,000　women.　The　vast　majority　of　vulvar　carcinomas　are　of　the　squamous　cell　type　(90%).　Primary　vulvar　adenocarcinomas　rank　among　the　rare　gynecological　malignancies.　We　herein　present　a　case　of　a　vulvar　mass　near　the　vaginal　orifice,　the　biopsy　of　which　revealed　a　mucinous　adenocarcinoma.　Local　excision　was　performed,　followed　by　postoperative　chemotherapy.　The　patient　was　asymptomatic　and　developed　no　recurrence　during　the　2　years　of　follow-up　after　surgery　and　chemotherapy.　We　consider　local　excision,　with　or　without　chemotherapy,　to　be　an　effective　therapeutic　approach　to　this　type　of　tumor.　However,　further　studies　are　required　to　support　our　conclusions　for　early-stage　vulvar　mucinous　adenocarcinoma.