Background and Aims Hydatidosis, caused by Echinococcus granulosus, is an endemic parasitic disease. The most frequent anatomic locations are liver and lung. Dogs and other canines are the primary definitive hosts for this parasite. Hydatid cyst may develop after accidental ingestion of tapeworm eggs, excreted with the feces of these animals. Diagnosis is usually based on radiological and serological findings.
Patient We present a 6 Year-Old-Boy with abdominal pain since months ago. He had history of travelling to village and exposure to cattle and dog. Physical examination of head and neck, chest, extremities, and neurologic exam were normal. In abdominal Physical examination he had mild right upper quadrant tenderness without rebound tenderness. Liver was palpable 3 Cm below costal margin. Abdomoinal sonography and CT scan showed multiple huge cysts in liver that occupied almost all the liver space. Serum hydatid cyst antibody was positive. With diagnosis of hydatosis surgery was done and albendazole started for him. The patient improved after a while and he was discharged with good general condition.
Conclusion Hydatid cyst should be considered in every patient with liver cystic lesion in endemic area.