Intracranial Arachnoid Cyst: Symptoms, Diagnosis, and Therapy

Abstract

Intracranial arachnoid cysts are common findings on routine cross sectional imaging, which may cause neurological problems depending on their extension and location, leading to neurosurgical intervention. An 11-year-old boy presented with symptoms of increased intracranial pressure. A neurosurgical fenestration of an arachnoid cyst detected in the MRT was performed because of a slight relative afferent pupillary deficiency, a papillary edema, and an elevated optic nerve sheath diameter (ONSD). In the follow-up of 2 years the patient was free of symptoms with normalization of the ophthalmologic findings, reduced size of the cyst, and decreasing ONSD.

KEYWORDS:

• Arachnoid cyst
• headache
• intracranial hypertension
• papillary edema
• ONSD