Fig. 2
From: Pure secretory carcinoma in situ: a case report and literature review
The immunohistochemial character of secretory carcinoma in situ. a, SMMHC highlighted the complete presence of myoepithelial cells around the tumour nests (Envision, × 40). b, Tumor cells were diffusely positive for S100 (Envison, × 100). c, Tumor cells were diffusely positive for CK5/6 (Envison, × 100). d, The Ki-67 index was about 10% (Envison, × 100)