title: Accessory liver lobes: anatomical description and clinical implications.
abstract: Accessory liver lobes are a rare condition and appear to be due to excessive development of the liver. The presence of an accessory hepatic lobe is often diagnosed incidentally and sometimes revealed if it develops torsion, especially in pedunculated forms. In most cases, the accessory lobe is located below the liver, i.e., infrahepatic. Riedel's lobe is the best-known example of an accessory lobe, corresponding to hypertrophy of segments V and VI. While accessories lobes can simulate tumors, there have also been reports of hepatocellular tumor(s) that developed in these accessory lobes. Based on a review of the literature, this update focuses on accessory hepatic lobes.
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
authors.forename: M
authors.initials: M
authors.lastname: Glenisson
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
authors.forename: C
authors.initials: C
authors.lastname: Salloum
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
authors.forename: C
authors.initials: C
authors.lastname: Lim
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
authors.forename: L
authors.initials: L
authors.lastname: Lacaze
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
authors.forename: A
authors.initials: A
authors.lastname: Malek
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
authors.forename: A
authors.initials: A
authors.lastname: Enriquez
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
authors.forename: P
authors.initials: P
authors.lastname: Compagnon
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France.
authors.forename: A
authors.initials: A
authors.lastname: Laurent
authors.affiliation: Service de chirurgie digestive, hépatobiliaire, pancréatique et transplantation hépatique, hôpital Henri-Mondor, Assistance Publique-Hôpitaux de Paris, 51, avenue du Maréchal-de-Lattre-de-Tassigny, 94010 Créteil, France. Electronic address: daniel.azoulay@hmn.aphp.fr.
authors.forename: D
authors.initials: D
authors.lastname: Azoulay
mesh_terms: D006528:Carcinoma, Hepatocellular / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D006498:Hepatectomy; D006529:Hepatomegaly / Q000151:congenital* / Q000175:diagnosis / Q000473:pathology; D006801:Humans; D010535:Laparoscopy; D008099:Liver / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D011859:Radiography
keywords: Accessory lobe; Anatomical variation; Laparoscopic hepatectomy; Pedunculated hepatocellular tumors; Riedel's lobe