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Washington University Experience | VASCULAR | Intravascular Papillary Endothelial Hyperplasia (Masson Tumor) | 5E2 Masson Tumor (Case 5) FXIIIA 10X
5E2,3 Factor XIIIa stains multiple elements of this Masson tumor including both lining cells and cells within the papillae (FXIIIa IHC)
