Department of Pathology, University of Oklahoma Health Sciences Center

February 2005, Case 502-1.Quiz set! Click here to see.

A 28 year-old woman with an intraventricular mass.

Clinical information The patient was a 28 year-old woman who complained of headache and dizziness. Imaging reviewed a cystic mass with a nodule. The mass was removed. Representative sections are shown below:

Click thumbnails to see pictures.

Panel A is T1 weighted image with gadolinium enhancement. Panel B is T2 weighted image. Panel C and D are intraoperative cytologic preparation. Panel E and F are intraoperative frozen sections. Panel G to H are formalin fixed, paraffin embedded sections stained with hematoxylin-eosin stain. Panel L to P are immunohistochemistry for S100 protein, vimentin, cykeratin AE1/AE3, glial fibrillary acidic protein (GFAP) and Ki67 respectively.

What is your diagnosisDiscussion

Cases of the Month  Evaluation  Coordinator: KarMing-Fung@ouhsc.edu