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Washington University Experience | NEOPLASMS (NEURONAL) | Paraganglioma - Cauda Equina Neuroendocrine Tumor | 4E1 Paraganglioma (Case 4) CD99 (O13) 2.jpg
4E1,2 A CD99 (013) immunostain shows diffuse membranous reactivity, however there is no perinuclear dot-like immunoreactivity.