Gobara Hideo, Hiraki Takao, Iguchi Toshihiro, Fujiwara Hiroyasu, Nagasaka Takeshi, Kishimoto Hiroyuki, Tanaka Takehiro, Kanazawa Susumu
Departments of Radiology, Okayama University Hospital, Okayama 700-8558,
Acta Med Okayama. 2016 Dec;70(6):511-514. doi: 10.18926/AMO/54817.
An 87-year-old Japanese man underwent percutaneous cryoablation (PCA) therapy for his renal cell tumor. We displaced the colon from the tumor using hydrodissection. Computed tomography (CT) immediately after PCA was indicative of iceball extension to the colon wall, and a discontinuous enhancement of the colon wall was observed. We therefore performed an emergency surgery. On laparotomy, we observed a dark-purple area on the affected area of the colon, and the resected specimen showed focal, deep ulceration on the mucosal surface. Photomicrography revealed mucosal necrosis, submucosal hemorrhage, and necrotic foci in the muscularis propria, corresponding to the discontinuous colon wall enhancement on CT and the deep ulceration and dark-purple area on laparotomy. He recovered from surgery and was discharged without any complications.
