[Primary lung cancer with solitary adrenal tumor].

We experienced that two lung cancer patients who had been considered to be potentially resectable were preoperatively pointed out enlarged adrenal glands. Therapeutically, discrimination between benign and malignant adrenal mass lesion is an important problem. Case 1: After a 3 course neoadjuvant chemotherapy, a 50-year-old man had a left adrenalectomy, which revealed non-functional adenoma. One month later, a left lower lobectomy for T3N2 adenocarcinoma was performed. Case 2: A 64-year-old man had a right upper lobectomy for T2N0 adenocarcinoma, firstly. Two months later, a left adrenalectomy was done because a rapid growth and lumbago, which revealed metastatic adenocarcinoma originating from the lung. The patient died of brain and stomach metastases 4 months postoperatively.