[Analysis of the causes of misdiagnosis on CT films of 45 patients with lung cancer].

Background: To analyze the causes of computed tomographic misdiagnosis of pulmonary carcinoma.

Methods: From September 1991 to January 2002, 45 cases of pulmonary carcinoma misdiagnosed by CT were analyzed retrospectively. Twenty-six cases of pulmonary tuberculosis and 15 cases of pulmonary pneumonia misdiagnosed as pulmonary carcinoma by CT were studied as control subjects.