Abstract
A 74-year-old female was admitted because of hypoglycemia. Her chest X-rays revealed an abnormal shadow in the right lower lung field. The blood sugar levels were 41 mg/dl before breakfast and 50 mg/dl before dinner. The values of insulin-related insulin antibody, C-peptide, growth hormone and. cortisol were within normal limits. The chest X-ray films on admission showed a tumor with massive pleural effusion in the right lung. The chest CT scan showed a tumor with calcification and heterogeneous enhancement in the right lower lung field.
At operation, the tumor was found to have a fibrous hard part and a soft part like a bunch of grapes compressing adjacent tissues. The resected specimen was 20×17×15 cm in size and 1200 g in weight. The hypoglycemic attacks disappeared after surgery. After a course of chemotherapy, she was dischared and was doing well without distant metastasis or local recurrence 18 months after surgery.
