Immunohistochemistry revealed that CK (Figure 1G), EMA, and SMARCA4 (Figure 1K) were positively expressed in the adenocarcinoma area, whereas Vimentin (Figure 1I) was negative; CK (Figure 1G), EMA, SMARCA4 (Figure 1K), ERG, Desmin, CD34, HMB-45, S100, CK7, CK5/6, and p40 were negatively expressed in the sarcoma area, while Ki-67(+50–60%), Vimentin (Figure 1I), and INI-1 were positively expressed. Here, MUC1 is linked to sarcoma.