Fig. 1: Cases with microscopic resemblance to low-grade endometrial stromal sarcoma.

A Micrograph of case 1 (PSS). Despite its morphologic appearance, which was reminiscent of low-grade endometrial stromal sarcoma, this case harbored a NAB2-STAT6 fusion. B Case 12 (PSS). This case also had morphologic features suggestive of low-grade endometrial stromal sarcoma with partly tubular (sex-cord stromal tumor-like) architecture and harbored a JAZF1-SUZ12 rearrangement. Abbreviations: PSS prostatic stromal sarcoma.