Abstract
We report a case of appendiceal metastasis from pleomorphic lung carcinoma. A 59-year-old man undergoing upper left pneumolobectomy for pleomorphic lung carcinoma (T2N0M0: stage II) 12 months earlier admitted for diarrhea and fever, and failed to improve with conservative therapy for acute enteritis and was found in abdominal CT to have a cystic mass 5cm in diameter in the right pelvic cavity. In laparotomy based on a preoperative diagnosis of appendiceal tumor, the appendiceal cystic tumor was found to be perforated with retroperitoneal abscesses necessitating ileocecal resection with D2 lymph node dissection. Pathological findings indicated invasive pleomorphic carcinoma, compatible with lung carcinoma resected 12 months earlier. The definitive diagnosis was appendiceal metastasis from lung carcinoma. The man died of peritoneal dissemination 14 months after his final surgery despite systemic chemotherapy.
