title: Acanthosis nigricans due to gastric adenocarcinoma.
mesh_terms: D000052:Acanthosis Nigricans / Q000209:etiology*; D000230:Adenocarcinoma / Q000150:complications* / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000150:complications* / Q000175:diagnosis