[原著］Occult Lung Cancerの1症例 : 喀痰細胞診の検討を中心として

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A case of occult lung cancer in a 62 year old male patient is reported. He has smoked cigaretts heavily for about 35 years, whose Brinkmann Index was calculated as high as 700. The incidence of lung cancer is generally considered to be high among those showing high level of Brinkmann Index. He visited our hospital first because of having productive cough with hemosputum. The chest X-ray film revealed no abnormal findings. Wefound atypical squamous metaplastic cells on sputum examination. Although it is controversial whether squamous cell metaplasia might be precancer state or not, we payed strong attention to such a metaplasia which could often be only means in detecting lung cancer in early stage. Fiberoptic bronchoscopy revealed polypoid tumor of 3 mm in diameter located at the orifice of right mediobasal bronchus. The bronchial brushing specimen obtained from this tiny tumor showed squamous cell carcinoma. A radical operation was performed uneventfully under the diagnosis of occult lung cancer. No evidence of recurrence has been observed for these eight months since he was surgically treated.
琉球大学医学部の論文
1982-00-00