Hepatoduodenal ligament teratoma presenting with fever in a young adult.

Hepatoduodenal ligament teratomas are very rare, and there are fewer than 20 cases reported in the literature. A 22-year-old woman with fever and acute abdominal pain due a mature cystic teratoma in the hepatoduodenal ligament. This occurrence when presented with acute cholangitis was the first case of this rare tumor. Previous cases seen in adults were asymptomatic and were diagnosed incidentally on investigations. The mass was successfully removed operation on this patient without affecting the portal triad structures. This case adds to our knowledge of how these rare tumors may present clinically. It also highlights the relevance of this diagnosis in young adults with acute febrile illness and appropriate imaging characteristics.