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Washington University Experience | DEVELOPMENTAL MALFORMATIONS | Dermal Sinus Tract | 2A1 Dermal Sinus Tract (Case 2) H&E

2A-B Four month old child with dermal sinus tract connecting a dermoid cyst adjacent to the spine with the overlying skin.---- The walls of this sinus have epithelioid aggregates resembling ependyma (H&E) which are strongly immunoreactive for GFAP (2B).

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