HPV11 Positive Endometrioid Carcinoma of the Endometrium with Signet-Ring Cells: Diagnostic Criteria and Review of the Literature

<table>Estrogen Receptor (a) and Progesteron Receptor (b) immunostains are negative in the signet-ring cells component. P16 (c) and vimentin (d) immunostains are strongly positive in the signet-ring cell component (10x).</table>

Case Reports in Pathology

fig4

Figure 4

Figure 4: HPV11 Positive Endometrioid Carcinoma of the Endometrium with Signet-Ring Cells: Diagnostic Criteria and Review of the Literature 