Diagnosis:
Suggested by MRI and confirmed by pathology (brain biopsy/resection)
Findings on Investigations:
MRI:
- Usually cystic, intraaxial, well demarcatd
- Enhancing
Pathology:
Histology: Oval nuclei, cytoplasm fibrillary or cuboidal
Perivascular pseudorosette with broad processes`. Vascular hyalinisation.
Immunohistochemistry: positive for GFAP, S100. Negative for Synaptophysin, neurofilament, NeuN, chromogranin