Images in medicine | Volume 35, Article 27, 04 Feb 2020 | 10.11604/pamj.2020.35.27.19768

Quadrigeminal cistern arachnoid cyst causing hydrocephalus

Sidi Salem-Memou, Najat Boukhrissi

Corresponding author: Sidi Salem-Memou, Department of Neurosurgery, National Hospital of Nouakchott, Mauritania

Received: 16 Jul 2019 - Accepted: 11 Nov 2019 - Published: 04 Feb 2020

Domain: Neurosurgery

Keywords: Arachnoid cyst, neuroendoscopy, quadrigeminal cistern

©Sidi Salem-Memou et al. Pan African Medical Journal (ISSN: 1937-8688). This is an Open Access article distributed under the terms of the Creative Commons Attribution International 4.0 License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Cite this article: Sidi Salem-Memou et al. Quadrigeminal cistern arachnoid cyst causing hydrocephalus. Pan African Medical Journal. 2020;35:27. [doi: 10.11604/pamj.2020.35.27.19768]

Available online at: https://www.panafrican-med-journal.com/content/article/35/27/full

Home | Volume 35 | Article number 27

Images in medicine

Quadrigeminal cistern arachnoid cyst causing hydrocephalus

Quadrigeminal cistern arachnoid cyst causing hydrocephalus

Sidi Salem-Memou1,&, Najat Boukhrissi1

 

1Department of Neurosurgery, National Hospital of Nouakchott, Mauritania

 

 

&Corresponding author
Sidi Salem-Memou, Department of Neurosurgery, National Hospital of Nouakchott, Mauritania

 

 

Image in medicine    Down

The quadrigeminal cistern is an unusual location for these cysts. Quadrigeminal arachnoid cysts account for 5% to 10% of all intracranial arachnoid cysts. They are frequently diagnosed coincidentally on computed tomography (CT) or magnetic resonance imaging (MRI). They cause symptoms when they become sufficiently large to compress the adjacent brain structures. Endoscopic fenestration of the cyst with cystocisternostomy or cysto ventriculostomy, when combined with third ventriculostomy, is the procedure of choice for such patients. A 14-month-old boywas referred to neurosurgery clinic due to increased head circumference. His had been in good health until age 8 months, between age 9 and 13 months his acquisition of developmental skills was slow. Magnetic resonance image (MRI) demonstrated enlargement of the supratentorial ventricular system secondary to a large quadrigeminal cistern arachnoid cyst compressing the brainstem, cerebellum, aqueduct of Sylvius and fourth ventricle. The cystic mass appeared hyperintense on T2 weighted-images (A, B), hypointense on T1-WI (C, D), similar to cerebrospinal fluid (CSF) signal, without enhancement after Gadolinium administration. The patient was operated by transventricular approach with endoscopic third ventriculocystostomy and endoscopic third ventriculostomy (ETV). The postoperative course was uneventful.

 

 

Figure 1: magnetic resonance image (MRI) demonstrated enlargement of the supratentorial ventricular system secondary to a large quadrigeminal cistern arachnoid cyst compressing the brainstem, cerebellum, aqueduct of sylvius and fourth ventricle. The cystic mass appeared hyperintense on T2 weighted-images (A, B), hypointense on T1-WI (C, D), similar to cerebrospinal fluid (CSF) signal, without enhancement after Gadolinium administration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Images in medicine

Quadrigeminal cistern arachnoid cyst causing hydrocephalus

Images in medicine

Quadrigeminal cistern arachnoid cyst causing hydrocephalus

Images in medicine

Quadrigeminal cistern arachnoid cyst causing hydrocephalus