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CT Ventriculography for diagnosis of occult ventricular cysticerci

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Title: CT Ventriculography for diagnosis of occult ventricular cysticerci
Author(s): Herrera, Sebastian R.; Chan, Michael; Alaraj, Ali M.; Neckrysh, Sergey; Lemole, Mmichael G.; Slavin, Konstantin V.; Charbel, Fady T.; Amin-Hanjani, Sepideh
Subject(s): Neurocysticercosis intraventricular lesions
Abstract: BACKGROUND: Neurocysticercosis is the most common parasitic infection of the central nervous system (CNS). Intraventricular lesions are seen in 7-20% of CNS cysticercosis. Intraventricular lesions can be missed by computed tomography (CT) and magnetic resonance imaging (MRI) as they are typically isodense/isointense to the cerebrospinal fluid. We present our experience with CT ventriculography to visualize occult cysts. CASE DESCRIPTION: Two patients presented with hydrocephalus and suspected neurocysticercosis were evaluated with CT and MRI with and without contrast failing to reveal intraventricular lesions. CT-ventriculography was used: 10 ml of cerebrospinal fluid was drained from the ventriculostomy catheter, and 10 ml of iohexol 240 diluted 1:1 with preservative-free saline was injected through the ventriculostomy catheter. Immediate CT of the brain was performed. The first patient had multiple cysts located throughout the body of the left lateral ventricle. The second patient had a single lesion located in the body of the lateral ventricle. The CT-ventriculography findings helped in identifying the lesions and plan the surgical intervention that was performed with the aid of an endoscope to remove the cysts. CONCLUSIONS: Intraventricular neurocysticercosis is a common parasitic disease which can be difficult to diagnose. We used CT-ventriculography with injection of contrast through the ventriculostomy catheter in two patients where CT and MRI failed to demonstrate the lesions. This technique is a safe and useful tool in the imaging armamentarium when intraventricular cystic lesions are suspected.
Issue Date: 2010-12-23
Publisher: Medknow Publications
Citation Info: Herrera, S. R., Chan, M., Alaraj, A. M., Neckrysh, S., Lemole, M. G., Amin-Hanjani, S., Slavin, K. V., & Charbel, F. T. 2010. CT Ventriculography for diagnosis of occult ventricular cysticerci. Surgical Neurology International, 1: 92. DOI: 10.4103/2152-7806.74188
Type: Article
Description: The original source is available at Medknow Publications at DOI: 10.4103/2152-7806.74188
ISSN: 2152-7806
Date Available in INDIGO: 2011-05-26

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