title: Gastric ulcer. An unusual presentation of malignant melanoma.
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008545:Melanoma / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D008875:Middle Aged; D009362:Neoplasm Metastasis; D013274:Stomach Neoplasms / Q000175:diagnosis* / Q000473:pathology; D013276:Stomach Ulcer / Q000175:diagnosis*