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Washington University Experience | NEOPLASMS (EMBRYONAL) | Medulloblastoma, Histologically Defined | Classic Subtype | 15B2 (Case 15) Medulloblastoma, Re-Entry Retic 20X
A higher magnification image of image #15B1. Notice that there are reticulin fibers involving tumor in the subarachnoid space in response to invasion and their absence in the invading tumor. The primary growth pattern of this tumor lacks reticulin and only when the leptomeninges are invaded does reticulin appear. (Reticulin)
