EWSR1 and Ewing sarcoma: Of the 13 cases compiled by Shu et al, none had a location of the cardia of the stomach.4 In addition, only 15% of ES cases have a EWSR1::ERG fusion gene, as presented in this case.1 Of the few published cases, Yu et al found that primary gastric ES was more commonly found in female patients than male patients with nonspecific symptoms at presentation and a tumor larger than 5 cm.2 Our patient contradicts several of these findings.