典型的肺癌X线表现为中心型和周围型,由于都有一定的X线特征,所以诊断不太困难。但不典型或特殊类型的肺癌,X线表现形式多种多样,诊断有一定的复杂性,住往延误治疗,现就其诊断问题作一探讨。隐伏型肺癌所谓隐伏型肺癌,系指病人已患癌,痰中查出癌细胞,而X线常规方法检查 The typical X-ray findings of lung cancer are central and peripheral. Because of the X-ray features, the diagnosis is not too difficult. However, atypical or special types of lung cancer, X-ray manifestations are various, the diagnosis is a certain degree of complexity, lived to delay treatment, now on its diagnosis. Concealed type of lung cancer, so-called hidden lung cancer, refers to the patient has cancer, sputum found in cancer cells, and X-ray routine examination