原发性支气管肺癌(肺癌)是最常见的肺部原发性肿瘤。肺癌患者就诊时大多已属中晚期,具有远处转移的症状和体征,而以浅表淋巴结转移肿大最常见。早期以皮下结节为首发症状而双肺无原发病灶的肺癌实属少见,而小细胞型肺癌首先表现为皮肤转移者尚未见报道。我科收治了3例患者,现报 Primary bronchial lung cancer (lung cancer) is the most common primary lung tumor. Most of the lung cancer patients are already in advanced stage, with distant metastasis of symptoms and signs, and superficial lymph node metastasis is the most common. Early subcutaneous nodules as the first symptom of lung without lung lesions of the original lung cancer is rare, and small cell lung cancer first manifested as skin metastasis has not been reported. Our department treated 3 patients, are reported