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Washington University Experience | NEOPLASMS (GLIAL) | Astrocytoma, pilocytic - Gross Pathology | 7B2 Astrocytoma, pilocytic, optic nerve (Case 7) Trichrome WM
7B2,3 The section shown in image #7B1 has been stained with a trichrome stain to show the collagenous environment (7B2) and GFAP (7B3).