Rare cause of abdominal incidentaloma: Hepatoduodenal ligament teratoma

Figure 1 Cross-sectional imaging. A hepatoduodenal heterogeneous mass was revealed by A: Computed tomography; B: Magnetic resonance imaging.

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 Tumor appearance. The resected heterogeneous lesion was composed of fat tissue, calcifications and hair.

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.