Fig. 3

GATA3 immunohistochemical staining patterns in vulvar invasive squamous cell carcinomas. Invasive squamous cell carcinoma arising in association with differentiated VIN a (H&E, ×200) shows marked loss of staining in the tumor cell nuclei b (×200). Invasive carcinoma arising from usual type VIN c (H&E, ×200) shows similar loss of staining d (×200)