title: Letter: Metastatic nasal melanoma presenting as intussusception of the ileum.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D007414:Intestinal Neoplasms / Q000175:diagnosis*; D007421:Intestine, Small; D007443:Intussusception / Q000175:diagnosis*; D008545:Melanoma / Q000175:diagnosis*; D009362:Neoplasm Metastasis; D009669:Nose Neoplasms