Case Report
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World J Gastrointest Surg. May 27, 2014; 6(5): 80-83
Published online May 27, 2014. doi: 10.4240/wjgs.v6.i5.80
Rare cause of abdominal incidentaloma: Hepatoduodenal ligament teratoma
Vagner Birk Jeismann, Rodrigo Blanco Dumarco, Celso di Loreto, Ricardo Correa Barbuti, José Jukemura
Vagner Birk Jeismann, Rodrigo Blanco Dumarco, Ricardo Correa Barbuti, José Jukemura, Department of Gastroenterology, School of Medicine, University of São Paulo, São Paulo, SP 05403-900, Brazil
Celso di Loreto, CICAP Pathology Laboratory, Oswaldo Cruz German Hospital, Sao Paulo, SP 01323-903, Brazil
Celso di Loreto, The Adolfo Lutz Institute, Sao Paulo, SP 01246-902, Brazil
Author contributions: Jeismann VB, Dumarco RB and Jukemura J performed the procedure; Jeismann VB and Dumarco RB reviewed the literature; di Loreto C, Barbuti RC and Jukemura J analyzed and reviewed the paper; Jeismann VB and Jukemura J wrote the paper.
Correspondence to: Vagner Birk Jeismann, MD, Department of Gastroenterology, School of Medicine, University of São Paulo, Avenida Doutor Enéas de Carvalho Aguiar, 255 Central Institute, Room 9074, São Paulo, SP 05403-900, Brazil. vjeismann@gmail.com
Telephone: +55-11-26617560 Fax: +55-11-26617560
Received: November 21, 2013
Revised: January 10, 2014
Accepted: April 17, 2014
Published online: May 27, 2014
Processing time: 188 Days and 9.5 Hours
Abstract

The occurrence of a hepatoduodenal ligament teratoma is extremely rare, with only a few cases reported in the literature. This case report describes the discovery of a hepatoduodenal ligament lesion revealed during abdominal ultrasonography for cholelithiasis-related abdominal pain in a 27-year-old female. Cross-sectional imaging identified a 5 cm × 4 cm heterogeneous mass of fat tissue with irregular calcification located in the posterior-superior aspect of the head of the pancreas. An encapsulated lesion showing no invasion to the common bile duct or adjacent organs and vessels was exposed during laparotomy and resected. Intraoperative cholangiography during the cholecystectomy showed no abnormalities. The postoperative course was uneventful. Pathological analysis of the resected mass indicated hepatoduodenal ligament teratoma. This case report demonstrates that cross-sectional imaging, such as computed tomography, can reveal suspected incidences of this rare type of teratoma, which can then be confirmed after pathologic analysis of the specimen. The prognosis after complete surgical resection of lesions presenting with benign pathological features is excellent.

Keywords: Abdominal incidentaloma; Teratoma; Hepatoduodenal ligament; Surgery; Hepatobiliary surgery

Core tip: The 10th reported case of hepatoduodenal ligament teratoma is presented in a patient who underwent cross-sectional imaging for the evaluation of an abdominal mass. As incidences of hepatoduodenal ligament teratoma are extremely rare, this report may help physicians to suspect this disorder in an emergent group of patients with abdominal incidentaloma.