AJNR Case Collection
Section Editors:
Anvita Pauranik, MD, University of British Columbia, Vancouver, British Columbia, Canada
Michael Travis Caton, MD, Mount Sinai South Nassau, New York
Simona Gaudino, MD, Università Cattolica del Sacro Cuore, Italy
Matthew S. Parsons, MD, Mallinckrodt Institute of Radiology, Missouri
Anat Yahav-Dovrat, MD, University of Toronto, Canada
Final Diagnosis: Colloid Cyst
Imaging Findings:
Brain MRI demonstrates a tiny unilocular cystic lesion along the roof of the third ventricle with (A) subtle T2-FLAIR hyperintense signal and (B) T1 signal isointense compared with white matter. C) There is no enhancement of the lesion. There is no mass effect or hydrocephalus.
Subsequent histology performed during postmortem brain dissection identified a 2-mm cyst at the foramen of Monro containing proteinaceous content (D). A gross pathology photo similarly revealed a visible lesion to correlate with the aforementioned findings (E).
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