Radiologic Manifestations of Colloid Cysts: A Pictorial Essay

Abstract Colloid cysts are among rare benign tumours of the third ventricle. Although the most frequent symptoms are headache and syncope, arrest hydrocephalus or sudden death could appear with colloid cysts. The aim of this pictorial essay was to increase awareness of the clinical presentation, com...

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Bibliographic Details
Published in:Canadian Association of Radiologists journal 2013-02, Vol.64 (1), p.56-60
Main Authors: Algin, Oktay, MD, Ozmen, Evrim, MD, Arslan, Halil, MD
Format: Article
Language:English
Subjects:
3-Dimensional
Adult
Aspiration
Benign
Brain neoplasm
Cerebrospinal fluid
Cholesterol
Colloid cyst
Colloid Cysts - diagnosis
Colloid Cysts - diagnostic imaging
Colloids
Computed tomography
Cysts
Data processing
Diagnosis, Differential
Female
Headache
Headaches
Humans
Hydrocephalus
Magnetic resonance imaging
Magnetic Resonance Imaging - methods
Male
Middle Aged
NMR
Nuclear magnetic resonance
Radiology
Retrospective Studies
Sudden death
Syncope
Third ventricle
Third Ventricle - pathology
Tomography
Tomography, X-Ray Computed - methods
Tumors
Ventricles (cerebral)
Viscosity
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Summary:Abstract Colloid cysts are among rare benign tumours of the third ventricle. Although the most frequent symptoms are headache and syncope, arrest hydrocephalus or sudden death could appear with colloid cysts. The aim of this pictorial essay was to increase awareness of the clinical presentation, computed tomography (CT) and magnetic resonance (MR) imaging spectrum, and treatment options of the colloid cysts. The data of 11 patients with histopathologically and/or clinically proven colloid cyst were analysed, retrospectively; and the neuroradiologic appearances of the cysts were evaluated. The CT and MR appearance of colloid cysts may change, depending on the viscosity or the cholesterol content of the cysts. However, the cystic content is the most important factor that could affect the success of treatment. Cysts that are especially rich in protein and cholesterol tend to be hyperdense on CT, hypointense on T2-weighted sequences and hyperintense on T1-weighted sequences. These cysts are viscous, and the success of aspiration is significantly low. In the diagnosis and evaluation of small-sized cysts that have an ingredient similar to cerebrospinal fluid, 3-dimensional sequences might be useful. The radiologic appearances of colloid cysts could play an important role in directing these patients to alternative surgical modalities, including resection.
ISSN:0846-5371
1488-2361
DOI:10.1016/j.carj.2011.12.011