Pathology 10 year old child with posterior fossa mass. On biopsy following features were seen. What are these dense eosinophilic fibers marked with arrow? A Rosenthal fibers B The Alzheimer type II astrocyte C Corpora amylacea D None 💡 Explanation 10 year old child with posterior fossa mass. On biopsy following features were seen. What are these dense eosinophilic fibers marked with arrow? ✓ Correct Answer: A. Rosenthal fibers