Fig. 2

Microscopic photographs of the spermatocytic tumor in the left testis (Hematoxylin and eosin (HE) morphology and immunohistochemical profile). a Sheets of intermediate-sized tumor cells with occasional filamentous chromatin (HE, × 400). b Immunohistochemical nuclear positivity for SALL4 (SALL4, × 400). c Immunohistochemical membranous positivity for CD117 (CD117, × 400). d Negative immunohistochemical staining for OCT3/4 (OCT3/4, × 400)