Giant pedunculated liver hydatid cyst causing inferior vena cava syndrome: a case report.

Background: Hydatid disease is a zoonotic infection caused by the species Echinococcus that typically affects the liver. Most liver hydatid cysts are asymptomatic at first, but as the cyst grows larger, symptoms, such as compression effects, start to appear. Ultrasonography and computed tomography scans are the widely used diagnostic tools, and surgery is considered the mainstay of treatment.

Case presentation: We present an unusual case of a giant pedunculated hydatid cyst causing inferior vena cava syndrome in a 20-year-old male patient from the Oromo ethnic group from a rural area of the country. Abdominal ultrasound and computed tomography scan confirmed the diagnosis. Our patient underwent radical surgical resection of the cyst and had a good outcome.

Conclusion: Hydatid liver cyst diagnosis needs a high index of suspicion for echinococcal etiology when dealing with a giant liver cyst as it results in grave complications without any manifestations.