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Washington University Experience | DEVELOPMENTAL MALFORMATIONS | Cyst - Endodermal (aka Neurenteric, Enterogenous) | 11A3 Cyst, endodermal, (Case 11A4) CK7 20X
11A3,4 The lining epithelium stained strongly for CK7 (11A3) and demonstrated no CK20 immunoreactivity (11A4).