1The First Department of Internal Medicine, Faculty of Medicine, Kyoto University, 2The Second Department of Surgery, Faculty of Medicine, Kyoto University
Carcinoma of the appendix, Ultrasonography
A case of carcinoma of the appendix in a 30-year-old man was reported. He was admitted to hospital with slight fever and acute pain in the right lower quadrant of the abdomen. Appendicitis was suspected. Ultrasonography, however, showed the appendix to have an irregularly-shaped high-echoic mass area surrouded by a low level area, and carcinoma of the appendix was therefore suspected. CT scan, barium enema study, colonofiberscopy and angiography also suggested a diagnosis of carcinoma, which was confirmed by surgery. Ultra-sonography of the appendix provided findings helpful in differentiating between acute appendicitis and carcinoma of the appendix.