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Anales de la Facultad de Ciencias Médicas (Asunción)

versão impressa ISSN 1816-8949


FRANCO, Luz Janina; CHAPARRO, Fiorella Suelly; MENDEZ, Nathalia Belén  e  UCEDO, Oscar Manuel. Asymptomatic intraventricular arachnoid cyst: a case report. An. Fac. Cienc. Méd. (Asunción) [online]. 2020, vol.53, n.3, pp.173-176. ISSN 1816-8949.


Arachnoid cysts are benign collections of cerebrospinal fluid that represents 1% of lesions occupying intracranial spaces. It is frequently detected before the age of 20, between 60 to 90% of cases. The estimated prevalence is 1.4% in adults, the least frequent being intraventricular location.

Clinical Case:

A 60-year-old woman attended for a long-standing holocranial headache and occasional dizziness. No alteration in the neurological physical examination. A computerized axial tomography was performed, where a slight alteration in the intraventricular density drew attention, for which a nuclear magnetic resonance was carried out, which showed cystic images in the atrium of bilateral lateral ventricles. No surgical intervention was required because the patient did not present a significant symptomatology.


Surgical treatment is recommended in symptomatic patients, in cysts of great extension and in those with complications. For patients with only headache, without secondary hydrocephalus or an obvious increase in intracranial pressure, observation with or without repetition of the images is recommended.

Palavras-chave : Arachnoid Cysts; Lateral Ventricles; Neuroendoscopy..

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