Bilateral Middle Cranial Fossa Arachnoid Cysts With Temporal Lobe Agenesis. Case Report In Adult.

Ahmed El Mostarchid; Mamoune El Mostarchid; Ahmed Jidane

Authors

Ahmed El Mostarchid Radiology department of pediatric hospital. Ibn Sina Mohammed V University. Rabat. Morocco; Author
Mamoune El Mostarchid Neurosurgery departenmt of Specialities Hospital. Ibn Sina Souissi Mohamed V Univesity. Rabat. Morocco.; Author
Ahmed Jidane Neuroradiology departenmt of Specialities Hospital. Ibn Sina Souissi Mohamed V University. Rabat. Morocco. Author

Keywords:

Arachnoid cysts, CSF, papilledema, MRI, neuropsychological assessment

Abstract

Arachnoid cysts (ACs) represent approximately 1% of all intracranial space-occupying lesions. They are benign collections of fluid that develop within the arachnoid membrane, containing clear, colorless fluid resembling CSF. A 21-year-old man was admitted in consultation for some headaches. On admission, he was in good health. The neurological evaluation was normal. No neurocognitive disorders were noted, and routine laboratory investigations were within the normal range. The standard neuropsychological assessment was normal. The electroencephalogram was normal. Eye fundoscopy showed no papilledema. Bilateral middle cranial fossa arachnoid cysts with temporal lobe agenesis in adults are very rare. The diagnosis is made by a brain MRI. Prophylactic surgery in asymptomatic cases is not advisable. These patients must be followed by the practitioner.