title: Metastatic anal melanoma presenting as double intussusception of the small bowel.
mesh_terms: D000328:Adult; D001005:Anus Neoplasms / Q000175:diagnosis*; D006801:Humans; D007421:Intestine, Small; D007443:Intussusception / Q000175:diagnosis*; D008297:Male; D008545:Melanoma / Q000175:diagnosis*; D009362:Neoplasm Metastasis