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Case Reports
. 2014 May 27;6(5):80-3.
doi: 10.4240/wjgs.v6.i5.80.

Rare cause of abdominal incidentaloma: Hepatoduodenal ligament teratoma

Affiliations
Case Reports

Rare cause of abdominal incidentaloma: Hepatoduodenal ligament teratoma

Vagner Birk Jeismann et al. World J Gastrointest Surg. .

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; Hepatobiliary surgery; Hepatoduodenal ligament; Surgery; Teratoma.

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Figures

Figure 1
Figure 1
Cross-sectional imaging. A hepatoduodenal heterogeneous mass was revealed by A: Computed tomography; B: Magnetic resonance imaging.
Figure 2
Figure 2
Operative finding. A laparotomy revealed an encapsulated lesion without invasion to adjacent organs or vessels (1: Common bile duct; 2: Teratoma; 3: Right lobe of the liver).
Figure 3
Figure 3
Tumor appearance. The resected heterogeneous lesion was composed of fat tissue, calcifications and hair.
Figure 4
Figure 4
Histopathology of the tumor. Microscopic examination of the specimen revealed A: A cystic wall with cutaneous annexes; B: Glial fibrillary acidic protein immunoreactivity.

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