飯島 敏彦¹, 飯島 常喜², 柳橋 真生³, 南部 勝司¹

Toshihiko IIJIMA¹, Tsuneki IIJIMA², Shinsei YANAGIHASHI³, Masaji NAMBE¹

¹順天堂大学浦安病院内科, ²飯島診療所, ³鹿島白十字総合病院

¹Department of Internal Medicine, Urayasu Hospital, Juntendo University School of Medicine, ²Iijima Shinryojo, ³Kashima Hakujuji General Hospital

キーワード : Cyst of the liver, Natural reduction, Ultrasonogram

A 75 year-old female was examined abdominal ultrasonography (US) for health check-up on May 17, 1983. The US image demonstrated the presence of a solitary large cyst of the liver (7.5×4.5 cm in diameter) in the left lobe. Three years after the first examination, US was examined again and decrease in size of the cyst was revealed. Four years after the first examination, on April 19, 1987, the cyst showed remarkable spontaneous reduction, which was 1.5×1.0 cm in diameter.
This paper reported a rare case of solitary large cyst of the liver showed natural remarkable reduction.