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Washington University Experience | DEVELOPMENTAL MALFORMATIONS | Dandy-Walker Deformity | 5A2 Dandy-Walker Deformity (Case 5) 3 H&E

5A1-3 The lesion in this 11 month old child was thought before surgery to represent an arachnoid cyst. The wall in this case contains leptomeninges (arrows) and a lining of largely glial tissue (arrowheads). (H&E)

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