EWSR1 and mesenchymal cell neoplasm: In summary, we described five extra-abdominal and four intra-abdominal round cell/ epithelioid mesenchymal neoplasms sharing EWSR1/FUS::CREM fusions with frequent expression of aberrant epithelial, neuroendocrine and other markers, but distinct from AFH and not fitting with any currently defined mesenchymal entity.