title: Acute Bowel Injury due to Cryoablation for Renal Cell Carcinoma: Correlated Radiologic and Pathologic Findings.
abstract: 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.
authors.affiliation: Departments of Radiology, Okayama University Hospital, Okayama 700-8558, Japan.gobara@cc.okayama-u.ac.jp.
authors.forename: Hideo
authors.initials: H
authors.lastname: Gobara
authors.forename: Takao
authors.initials: T
authors.lastname: Hiraki
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Iguchi
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Takeshi
authors.initials: T
authors.lastname: Nagasaka
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kishimoto
authors.forename: Takehiro
authors.initials: T
authors.lastname: Tanaka
authors.forename: Susumu
authors.initials: S
authors.lastname: Kanazawa
mesh_terms: D000368:Aged; D002292:Carcinoma, Renal Cell / Q000601:surgery*; D003106:Colon / Q000293:injuries*; D003452:Cryosurgery / Q000009:adverse effects*; D006801:Humans; D007431:Intraoperative Complications / Q000473:pathology* / Q000601:surgery; D007680:Kidney Neoplasms / Q000601:surgery*; D008297:Male