[Cerebral peduncle hydatid cyst.]

ABSTRACT

The cerebral trunk localization of the hydatid cyst is exceptional. We report the case of a 3-year old girl who has a primary localization of the hydatid cyst on the level of cerebral [peduncle]. Our patient has been admitted with signs of intracranial hypertension. The initial CT scan reveals a triventricular hydrocephaly without an obvious [obstacle] and the magnetic resonance imaging showed a cystic lesion measuring 10 mm located in the mesencephale. This lesion obstructs the Sylvius's aqueduct hence, leading to the hydrocephaly. The patient has benefited from a ventriculo-peritoneal derivation. After 4 months she presented the same symptoms. the magnetic resonance imaging and the scan revealed a lesion measuring 36mm.the patient underwent a new operation and the diagnosis of intracranial hydatid cyst was confirmed with the histopathological examination. Our patient didn't have any other localization and her hydatid serology was negative, too