Short answer · Medically reviewed summary · Last updated: 2026-04-07

A colloid cyst of the third ventricle is most commonly referred to by that name, though it is sometimes identified in clinical literature as a neuroepithelial cyst or a paraventricular cyst. While these terms are used interchangeably, colloid cyst remains the standard diagnostic term used by neurosurgeons and radiologists to describe this specific, benign, gelatinous-filled growth located in the brain. What are the alternative names for a colloid cyst? While colloid cyst is the nomenclature preferred by contemporary medical professionals, you may encounter several synonyms in older medical records or research papers.

2 people with Colloid cyst have shared their first-person experience on this question at DiseaseMaps.

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Colloid cyst synonyms

Other names for Colloid cyst: synonyms, acronyms and related terms used by doctors and patients.

Colloid cyst is also known as...

A colloid cyst of the third ventricle is most commonly referred to by that name, though it is sometimes identified in clinical literature as a neuroepithelial cyst or a paraventricular cyst. While these terms are used interchangeably, colloid cyst remains the standard diagnostic term used by neurosurgeons and radiologists to describe this specific, benign, gelatinous-filled growth located in the brain.



What are the alternative names for a colloid cyst?


While colloid cyst is the nomenclature preferred by contemporary medical professionals, you may encounter several synonyms in older medical records or research papers. Historically, these lesions were sometimes described based on their location or their histological appearance. Common alternative names and descriptive terms include:



  • Third ventricular colloid cyst (the most anatomically precise term)

  • Neuroepithelial cyst (a broader category that includes these lesions)

  • Paraventricular cyst

  • Intraventricular cyst

  • Gelatinous cyst of the third ventricle


The term "colloid" refers to the thick, glue-like fluid found inside the cyst, which is distinct from the clear cerebrospinal fluid (CSF) found elsewhere in the brain. Because there is no major conflict in terminology, most physicians will readily understand these synonyms, though they will typically document the diagnosis officially as a colloid cyst.



Why does the medical name for this condition vary?


The variation in naming often stems from the progression of diagnostic imaging. Before the advent of high-resolution MRI, clinicians often used broader terms like "intraventricular mass" or "paraventricular cyst" until the specific nature of the lesion could be confirmed. Furthermore, because a colloid cyst is a specific subtype of neuroepithelial cyst, some pathologists may use the broader category in their reports. In major classification systems, you will find it indexed as follows:



  1. ICD-10/11: Typically classified under "Benign neoplasm of brain, supratentorial" or specific codes for intracranial space-occupying lesions.

  2. OMIM (Online Mendelian Inheritance in Man): While colloid cyst of the third ventricle is recognized, it is generally considered a sporadic, non-hereditary event rather than a traditional genetic syndrome.

  3. Orphanet: Recognized as a rare intracranial space-occupying lesion.



Which terminology is preferred by clinicians today?


In current clinical practice, colloid cyst is the gold-standard term. Using this specific name is vital for clear communication between neurologists, neurosurgeons, and radiologists. If you see terms like "neuroepithelial cyst" on your medical chart, it is likely being used as a descriptive synonym. 292 people in the DiseaseMaps community have shared their journeys with a colloid cyst, and we encourage you to use the standard term when seeking support or discussing your treatment plan with your healthcare team to ensure you are accessing the most relevant research and community experiences.



Next steps



  • Consult with a neurosurgeon to confirm the specific location and size of the colloid cyst, as these factors dictate management options.

  • Request a copy of your radiology report to ensure the terminology used matches your clinical diagnosis.

  • Connect with the 292 members of the DiseaseMaps colloid cyst community to share experiences and find emotional support.

  • Stay informed by following updates from reputable neuro-oncology and neurosurgery organizations regarding the latest minimally invasive surgical techniques.



Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.



References



  • NIH GARD: Genetic and Rare Diseases Information Center (GARD) database on intracranial cysts.

  • Orphanet: The portal for rare diseases and orphan drugs (orpha.net).

  • PubMed: National Library of Medicine database for peer-reviewed neurosurgical literature.

  • OMIM: Online Mendelian Inheritance in Man (omim.org) for clinical definitions of intracranial lesions.

Medical disclaimer: This information does not substitute professional medical advice. Always consult your doctor before making health decisions.
Source: DiseaseMaps.org
3 answers
cc, colloid cyst, benign brain tumour

Posted Oct 12, 2018 by Julia 2733
cyst of the 3rd ventricle
cyst of embryologic origin

Posted Oct 13, 2019 by dgustafs 2550

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