OPEN ACCESS Annals of Medicine and Medical Education ISSN: 2468-4937 2016 3(2):23-27 DOI 10.12973/amme.2016.00150a © Authors. Terms and conditions of Creative Commons Attribution 4.0 International (CC BY 4.0) apply. Correspondence: Figen Aslan, Balıkesir University, Faculty of Medicine, Department of Pathology, Balıkesir, Turkey. fgenaslan@gmail.com Ectopic Liver Attached to the Gallbladder Wall: A Rare Finding During Laparoscopic Cholecystectomy Figen Aslan Balıkesir University, TURKEY Gizem Akkas Dumlupınar University, TURKEY Received 25 December 2015 ▪ Revised 19 January 2016 ▪ Accepted 10 February 2016 ABSTRACT Ectopic liver is a rare developmental anomaly which is not connected to the main liver tissue and is located outside the liver tissue. In addition, the number of cases reported so far is less than 100. It is often asymptomatic, and found by chance at laparoscopy or laparotomy during the autopsy. It has been reported that it can be seen above and below the diaphragm in various parts of the body. It is most frequently seen in the gallbladder. In a 49-year-old female who underwent laparoscopic cholecystectomy due to stones in the gallbladder, liver tissue on gall bladder was detected incidentally. Moreover, during histopathological examination, it was seen as the normal liver tissue. Ectopic liver tissue is often asymptomatic. However, when it is detected, it is recommended that it should be removed due to the possible complications such as rupture, hemorrhage, compression effects, and the potential of hepatocellular carcinoma (HCC) development. The development of HCC is the most important condition and involves a higher risk of neoplastic transformation that is independent of the main liver tissue. Keywords: laparoscopy, cholecystectomy, gallbladder, ectopic liver INTRODUCTION Ectopic liver (EL) is a developmental anomaly which is independent of the main liver tissue and located outside of the liver, and usually found incidentally or at laparoscopy or laparotomy during autopsy (1,2). It is most frequently seen in the gallbladder. Different theories have been proposed to explain the development in different locations (1). Hepatocytes in EL can indicate same pathologies as normal hepatocytes and as fatty change, haemosiderosis, cholestazis or cirrhosis in the main liver. EL also increases the risk of carcinogenesis (2). Herein, the case including a patient operated due to gallstones, and found ectopic liver tissue in serosal surface of gallbladder by chance was presented.