A Pediatric Tumor Found Frequently in the Adult Population: A Case of Anaplastic Astroblastoma in an Elderly Patient and Review of the Literature

Figure 6

Glial fibrillary acidic protein (GFAP) stain shows positive staining demonstrating the glial origin of tumor cells (20x). Again, we can appreciate the tumor cells arranged in a perivascular pseudorosette with tumor cells directed toward the central blood vessel and the lack of fibrillarity.