Choroid plexitis

Last revised by Yahya Baba on 13 Nov 2022

Choroid plexitis is a general term referring to an inflammatory process affecting the choroid plexus; it is usually due to an infectious process. It is rarely seen as an isolated process and is commonly found in association with encephalitis, meningitis, or ventriculitis 1. The choroid plexus can also be a place of noninfectious inflammatory disorders, such as sarcoidosis, xanthogranulomas, and rheumatoid nodules 2.

Pathology

The choroid plexus lies at the interface between the cerebrospinal fluid and the systemic circulation, its capillaries have a fenestrated epithelium that serves as a way through which infectious organisms may gain access to the CNS 1,2

Radiographic features  

CT and MRI
  • lateral ventricle choroid plexus asymmetry or bilateral symmetric enlargement of the choroid plexus should alert one to possible choroid plexitis 1
  • asymmetrical enhancement of the choroid plexus

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