以胃外症状为主要表现的胃癌,极易误诊,为吸取教训,现将我院收治的4例,报告如下: 例1,男,56岁。因四肢散在性红斑伴肌肉疼痛半年就诊。体检:四肢散在性红斑,肌肉压痛,余无异常发现。按“皮肌炎”治疗一月无效。渐出现上腹隐痛,行钡剂造影诊断胃癌。术中见胃窦部4×3×3 Gastric cancer, the main manifestation of extragastral symptoms, is easily misdiagnosed. In order to learn lessons, the 4 cases admitted to our hospital are reported as follows: Example 1, male, 56 years old. Because of limb scattered erythema with muscle pain for six months. Physical examination: scattered erythema in the limbs, muscle tenderness, and no abnormalities were found. According to “dermatomyositis” treatment is invalid in January. Gradually appear abdominal pain, barium contrast imaging diagnosis of gastric cancer. Intraoperative see gastric antrum 4×3×3