Skip to main content
. Author manuscript; available in PMC: 2016 Feb 9.
Published in final edited form as: J Neurosurg. 2013 Apr 26;119(2):427–433. doi: 10.3171/2013.3.JNS122226

Fig. 2. Fibrillary astrocytoma (Case 7).

Fig. 2

A: Preoperative contrast-enhanced T1-weighted MR image revealing a nonenhancing left frontal lesion, which is evident only as an asymmetrical hypointense mass lesion along the falx. B: An H & E–stained specimen showing a slightly hypercellular lesion. C: Specimen stained for GFAP (green) showing tight alignment of thin glial filaments surrounding the CD31-positive vasculature (red). D: Specimen stained for AQ4 (red) similarly showing intense AQ4-positive staining around the green CD31-positive vessels.