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Washington University Experience | DEVELOPMENTAL MALFORMATIONS | Holoprosencephaly | Semilobar HPE | 13F6C (Case 13) A4 H&E 20X 4
These unusual structures represent herniations of the subpial glia into the overlying leptomeninges. I don’t think they are residual islands of superficial brains after intervening material has been lost by degeneration. (H&E)
