Abstract
A 73-year-old woman was admitted to our hospital for further examination of an abnormal shadow of the chest roentgenogram. Chest computed tomograms showed a nodular tumor shadow in the right S9. Transbronchial lung biopsy yielded a diagnosis of well differentiated adenocarcinoma of the lung. With a diagnosis of primary pulmonary adenocarcinoma, a right lower lobectomy with mediastinal lymph node dissection was done. There was a 0.7 cm-sized mass in S7, which was not detected preoperatively. The pathological diagnosis was multiple primary lung cancer : adenocarcinoma of S9 and typical carcinoid of S7 of the right lung. Subcarinal lymph node had metastasis from the carcinoid tumor. The patient is alive without recurrence 10 months after. The present case is interesting at the point that typical carcinoid with smaller diameter metastasized to mediastinal lymph node despite greater diameter of adenocarcinoma. Additionally lobectomy with mediastinal lymph node dissection is necessary for typical carcinoid to be resected radically.
