Abstract
We report a case of pleomorphic carcinoma with a bubble-like appearance on chest CT, resected after long term follow-up. The patient was a 73-year old female. In a chest radiograph taken during a medical check-up, an abnormal shadow was pointed out in the left upper lung field. This shadow was followed up as an inflammatory change for 4 years. The size of the shadow gradually increased, so she was referred to our hospital for close examination. Computed tomography showed the tumor, 6 cm in size, with a bubble-like appearance in the left upper lobe. Bronchoscopic examination was performed, but we could not make an exact diagnosis. However, we strongly suspected lung cancer based on this image and performed surgical resection, a left upper lobectomy. The final diagnosis was pleomorphic carcinoma, pathological pT2bN0M0 Stage II A. If we note a tumor shadow with a bubble-like appearance, we should take lung cancer into consideration.