肺非典型类癌是一种神经内分泌肿瘤。其细胞特点和临床特点介于典型类癌和肺小细胞未分化癌之间,其组织学表现范围广泛,被误诊者多达50％。本文32例中,有16例原先的病理诊断错误。作者复习了32例肺非典型类痛病人的临床资料和X线照片。指出非典型类癌在年龄范围、男女比例、吸烟史,呼吸系症状和转移发生率等各方面介于典型 Atypical lung cancer is a neuroendocrine tumor. Its cell characteristics and clinical characteristics are between the typical carcinoid and the undifferentiated carcinoma of the small cell of the lung. Its histological manifestations are extensive, and as many as 50% are misdiagnosed. Of the 32 cases in this article, 16 were originally diagnosed as pathologically incorrect. The author reviewed the clinical data and X-ray photographs of 32 patients with atypical dyspnea. It points out that atypical carcinoids are typical in terms of age range, male/female ratio, smoking history, respiratory symptoms and metastasis incidence.