小野 成樹¹, 森安 史典¹, 伴 信之¹, 中村 武史¹, 玉田 尚¹, 川崎 俊彦¹, 山下 幸孝¹, 木村 達¹, 内野 治人¹, 小澤 和恵²

Shigeki ONO¹, Fuminori MORIYASU¹, Nobuyuki BAN¹, Takefumi NAKAMURA¹, Takashi TAMADA¹, Toshihiko KAWASAKI¹, Yukitaka YAMASHITA¹, Satoru KIMURA¹, Haruto UCHINO¹, Kazue OZAWA²

¹京都大学医学部第一内科, ²京都大学医学部第二外科

¹The First Department of Internal Medicine, Faculty of Medicine, Kyoto University, ²The Second Department of Surgery, Faculty of Medicine, Kyoto University

キーワード : 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.