大西 勇人¹, 山田 珠樹¹, 加藤 直也¹, 山本 俊幸¹, 宮治 眞², 片桐 健二², 星野 信², 早川 富博², 岡山 安孝², 中井 富夫², 大岩 孝幸², 武内 俊彦²

Hayato OHNISHI¹, Tamaki YAMADA¹, Naoya KATOH¹, Toshiyuki YAMAMOTO¹, Makoto MIYAJI², Kenji KATAGIRI², Makoto HOSHINO², Tomihiro HAYAKAWA², Yasutaka OKAYAMA², Tomio NAKAI², Takayuki OH-IWA², Toshihiko TAKEUCHI²

¹名古屋市厚生院内科, ²名古屋市立大学第1内科

¹Department of Internal Medicine, Nagoya-shi Koseiin Geriatric Hospital, ²First Department of Internal Medicine, Nagoya City University Medical School

キーワード : Hepatic cyst, Infection, Advanced age, Ultrasonically guided drainage

A 100 year-old female was admitted to our hospital because of fever and anorexia. After admission, right hypochondralgia and slight liver dysfunction appeared. Ultrasonogram revealed a giant hepatic cyst with sludge echo and a few small hepatic cysts. CT-scan showed enlargement of the cyst containing two layers of fluid, which had been detected four years previously. Ultrasonically guided drainage of the cyst was performed and pus was obtained through the drainage tube. Since patient's general condition improved completely, the tube was removed eight days after drainage. Although the cyst remained 5 cm in diameter at that time, it disappeared nine months after removal of the drainage tube. Destruction of the epithelium of the cyst wall caused by infection was suspected to be the reason for the disappearance of this large cyst. Since ultrasonically guided drainage is an easy and safe procedure, it should be the first choiced for treating infected hepatic cysts, even in advanced aged.