Patient with bilateral proptosis is being investigated. Biopsy from the region shows:
ANS. B* Schwannoma is a favorite topic for AIIMS. Previously had asked to mark Antoni A and B, Verocay bodies* Dense area is Antoni A (black arrow) and less dense area is Antoni B (red arrow)* Other important histological slides of brain malignancies they can ask are:Meningioma (whorled pattern and psammoma bodies)Medulloblastoma (small round blue cell tumor)Ependymoma (characteristic perivascular pseudorosette)Glioblastoma multiformes (densely cellular tumor with necrosis and pseudopalisading of tumor cell nuclei)Pilocytic astrocytoma (rosenthal fibers)
Leiomyoma
Schwannoma
Rhabdomyosarcoma
Fibromatosis
Neoplasia