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Washington University Experience | VASCULAR | Intravascular Papillary Endothelial Hyperplasia (Masson Tumor) | 1A3 Intravascular Papillary Endothelial Hyperplasia (Case 1) H&E 6
1A3,4 Hypercellular areas show focal papillarity but may be limited in size and, in some regions, may be quite subtle (H&E).
