Choroid Plexus Cyst

Unknown Brain Case 4


63 y/o with incidental finding.

Image Findings

The T1-weighted images show a well circumscribed, low signal masses in the choroid plexus of the atria of both lateral ventricles. The T2-weighted image shows these masses to have very bright signal.

Differential Diagnosis

Choroid plexus papilloma Ependymoma Astrocytoma Meningioma Metastasis


Choroid Plexus Cysts are epithelial-lined cysts that usually occur bilaterally in the atria of the lateral ventricles. The symmetry and the smooth margins go against neoplastic lesions.

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Last modified March 22, 1995