Natural history and treatment of mucosal melanoma

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Abstract
Forty-three patients with primary mucosal melanomas seen between 1960 and 1987 were reviewed. There were 17 patients with tumors arising from the head and neck, 17 from the vulva and/or vagina, 8 from the anorectum, and 1 from the esophagus. Twenty-one patients were resected with curative intent. In patients with head and neck tumors, local recurrence was the initial cause of failure in the majority of cases, whereas with tumors arising from the anorectum, vulva, and vagina, systemic recurrence was more common. There were four long-term survivors, and three of these had melanomas less than 1 mm thick with negative regional lymph nodes; no patients with mucosal melanoma less than 1 mm thick developed recurrent disease. Overall, actuarial survival was 64% after 1 year and 23% after 5 years. Mucosal melanoma has a poor prognosis, and adequate resectional surgery affords the only chance of long-term survival.

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