Neuroimage--hydatid cyst of brain.

Fig. 1 : Flair mrI image showing multiple coalescing thin walled cysts of varying sizes in right frontoparietal region. No calcification/solid component seen – consistent with hydatid cyst. A 21 year old male presented with history of headache since last 1 year. headache was moderate in intensity, intermittent and associated with pain in the eyes. No history of any fever, vomiting or seizures was there. Past history of the patient was not relevant. routine laboratory investigations were within normal limits. mrI of the brain was done which revealed multiple coalescing thin walled cysts of varying sizes in the right frontoparietal region. No calcification/solid component was present. No perilesional oedema is seen. The lesion is causing mass effect on the right lateral ventricle with evidence of subfalcine herniation. Based on mrI findings, the diagnosis of hydatid cyst was given. Blood serology for Echinococcus was positive. Subsequently, the patient was operated and operative findings showed multiple thin walled cysts containing clear fluid. histopathological examination was consistent with Echinococcus granulosus.