Abstract
Case 1 was a 66-year-old man, who visited us in Novemaer 1981 because of dyspnea and short-breath. Suspecting the presence of two lesions, bronchial asthma and pulmonary carcinoma, he received treatment that did not alleviate his asthma-like symptoms. About 2 months later, he was diagnosed by bronchoscopy to have primary pulmonary carcinoma (sequamous cell carcinoma) . Case 2 was a 71-year-old woman. She had been admitted to a hospital elsewhere two months before to receive treatment for cough, wheezing and dyspnea. Disturbance of consciousness developed adruptly, so she was admitted to our hospital and diagnosed to have primary tracheal carcinoma. We are sure that we did not overlook possible tracheal carcinoma or pulmonary carcinoma in either chest X-P of both cases. However patients without abnormal shadow in their initial chese X-P who continue to resist treatment of their asthmatic attacks, should have their chest X-P reviewed for the abnormalities overlooked and possibilities of tracheal carcinoma and pulmonary carcinoma kept in mind.
