Hydatidosis is a global parasitic zoonotic infection which affects virtually any organ system in body. It is caused by larval stage of cestode Echinococcus granulosus. Being endemic it is a cause of substantial morbidity and mortality in India. Here we report a case of a 74 year old female from rural area of Wardha, Maharashtra who presented with multiple episodes of haematemesis. On ultrasonography of abdomen, large well defined hypo-anechoic cystic lesions with multiple septations were noted involving the right lobe of the liver. Contrast Enhanced Computed Tomography (CECT) of the abdomen and pelvis revealed round well-defined peripherally enhancing cystic multiloculated lesion.The cyst related to porta hepatis led to the compression of blood vessels in and around the liver mainly multiple peri oesophageal and mesorectal collaterals .After excision of cyst, the hydatid fluid sample was sent for microbiological examination which confirmed the diagnosis.

Keywords : Hydatidosis, Echinococcus granulosus, haematemesis, porta hepatis