부산대학교 도서관

A 67-year-old man had undergone subtotal gastrectomy and low anterior resection because of gastric and rectal cancer. A solid nodule was detected in the right upper lobe on CT after the surgery and he was referred to our hospital. Although transbronchial lung biopsies were performed, the histological diagnosis could not be confirmed. Evaluation of the intraoperative frozen sections revealed low-grade primary lung adenocarcinoma, and so right upper lobectomy and lymph node dissection were performed. The pathological diagnosis was pulmonary adenocarcinoma with choriocarcinomatous features. The patient remains alive with no recurrence without adjuvant chemotherapy.