부산대학교 도서관

Lung cancer is a leading cause of cancer-related death worldwide. Most patients diagnosed with lung cancer were at an advanced stage. However, small bowel metastasis is rare in patients with lung cancer. We reported a rare case of lung cancer with small bowel metastasis presenting with hollow organ perforation before treatment for cancer. CT of the abdomen disclosed free air accumulation at the peritoneal cavity. A tumor invasion-related perforation at 100 cm proximal to the ileocecal valve was seen in an emergency abdominal laparotomy. The histopathologic report revealed squamous cell carcinoma.