Ectopic liver tissue (choristoma) on the gallbladder: Acomprehensive literature review

• 作者: Adem Tuncer Cemalettin Koc Emrah Sahin Felat Ciftci Khaled Demyati Nese Karadag Sami Akbulut Sezai Yilmaz
• 来源期刊: 世界胃肠外科杂志:英文版(电子版)
• 学科: 医学
• 关键词: Liver GALLBLADDER Ectopic liver tissue Hepatic choristoma Histopathological features Hepatocellular carcinoma
• 年，卷（期）: 2020,（12）
• 页码范围: 534-548
• 页数: 15页
• 分类号: R73

摘要

BACKGROUND Liver tissue situated outside the liver with a hepatic connection is usually calledan accessory liver, and that without a connection to the mother liver, is calledectopic liver tissue.AIM To identify studies in the literature on ectopic liver tissue located on thegallbladder surface or mesentery.METHODS We present two patients and review published articles on ectopic liver tissuelocated on the gallbladder surface accessed via PubMed, MEDLINE, GoogleScholar, and Google databases. Keywords used included accessory liver lobe,aberrant liver tissue, ectopic liver tissue, ectopic liver nodule, heterotopic livertissue, hepatic choristoma, heterotopic liver tissue on the gallbladder, and ectopicliver tissue on the gallbladder. The search included articles published before June2020 with no language restriction. Letters to the editor, case reports, reviewarticles, original articles, and meeting presentations were included in the search.Articles or abstracts containing adequate information on age, sex, history of liverdisease, preliminary diagnosis, radiologic tools, lesion size, surgical indication,surgical procedure, and histopathological features of ectopic liver tissue wereincluded in the study.RESULTS A total of 72 articles involving 91 cases of ectopic liver tissue located on the gallbladder surface or mesentery were analyzed. Of these 91 patients, 62 werefemale and 25 were male (no gender available for 4 patients), and the age rangewas 5 d to 91 years. Forty-nine patients underwent surgery for chroniccholecystitis or cholelithiasis, and 14 patients underwent surgery for acutecholecystitis. The remaining 28 patients underwent laparotomy for other reasons.Cholecystectomy was laparoscopic in 69 patients and open in 11 patients. Theremaining 19 patients underwent various other surgical procedures such asautopsy, liver transplantation, living donor hepatectomy, Whipple procedure, andliver segment V resection. Histopathologically, hepatocellular carcinoma wasdetected in the ectopic liver tissue of one patient.CO