Arachnoid cysts are relatively common
benign lesions occurring in association with
the central nervous system, both within the
intracranial compartment (most common)
as well as within the spinal canal. They are
usually located within the subarachnoid
space and contain CSF.
Most frequently (50-60%) arachnoid cysts
are located in the middle cranial fossa,
where they invaginate into and widen the
Hydatid cysts of the brain.
Brain involvement with hydatid disease occurs in
1-2% of all Echinococcus granulosus infections.
Cerebral hydatid cysts are usually supratentorial,
whereas infratentorial lesions are quite rare
Hydatid cyst of the brain presents clinically as
intracranial space occupying lesion and is more
common in children. Surgery is the treatment
option with affordable morbidity and low