胃癌并发黑棘皮病少见，于1992年一1996年间收治3例，报告如下：例1，男性石回岁，双乳晕、面部及皱招处皮肤变黑、粗糙不平，形如棘皮样病变一年后出现上腹胀痛、消瘦及左锁骨上淋巴结肿大，活检为转移性低分化腺癌；胃镜证实胃之低分化腺癌；皮肤病灶活检为恶性黑棘皮病。先 Gastric cancer complicated with acanthosis nigricans is rare, and it was treated in 1992 and 1996. There are three cases reported as follows: Case 1, male stone back to old age, double areola, facial and wrinkle skin darkened, rough, shaped like acanthosis After the year, epigastric pain, weight loss and left supraclavicular lymphadenopathy occurred. Biopsy was metastatic poorly differentiated adenocarcinoma; gastroscopy confirmed poorly differentiated adenocarcinoma of the stomach; skin lesion biopsy was malignant acanthosis nigricans. first