CREB1 and mesenchymal cell neoplasm: In a broader context, similar epithelioid mesenchymal tumors with keratin expression and EWSR1/FUS::CREB fusion have been reported in the abdominal cavity outside the stomach, with many of these tumors showing malignant behavior, including recurrence, metastasis, and resistance to chemotherapy.1,8) Considering these previous tumor reports, we believe that our case should be carefully followed up for potential malignancy.