Lesson Learnt in Anal Melanoma: A Case Report.

A 54-year-old lady had presented with perineal pain. Clinically, she had pallor and inspection of the perineum showed black mapping of the skin. She was diagnosed to be a case of melanoma on transanal biopsy. There were no liver and pulmonary metastasis. She underwent abdomino-perineal resection and adjuvant chemoradiotherapy. However, she threw a convulsion after 6 months and later died of cerebral metastasis. Complete metastatic work-up is mandatory before undertaking cancer therapy in a case of malignant melanoma.