arachnoid villi

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arachnoid villi

[ə′rak‚nȯid′vil·ē]
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The central portion of an arachnoid granulation contains CSF; the CSF is covered by arachnoid cells that are loosely attached to a fibrous capsule that is covered by endothelium.
Spontaneous cerebrospinal fluid leak presenting as unilateral (left-sided) middle ear effusion
16] Gacek concluded that herniation of aberrant arachnoid granulations over the middle and posterior fossa might be responsible.
Spontaneous cerebrospinal fluid leakage and middle ear encephalocele in seven patients
They are associated with aging and can be seen in the basal ganglia, pineal gland, falx, tentorium, arachnoid granulations, choroid plexus and the cerebellum.
Intracranial calcifications
Turner L: The estructure of arachnoid granulations with observations on their physiological and pathological significance.
Meningioma parasagital de la hoz con componente intraoseo exofitico gigante aislado: tecnica quirurgica

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