Table 5.

Semiquantitative Evaluation of VCAN and EGFR Immunostaining in Human Endometrial Tissue Sections From Women With Mild And Severe Endometriosis, As Well As Without Endometriosis

Protein	PE Mild Endometriosis		ESE Mild Endometriosis		MSE Mild Endometriosis		PE Severe Endometriosis		ESE Severe Endometriosis		MSE Severe Endometriosis
	Epithelium	Stroma	Epithelium	Stroma	Epithelium	Stroma	Epithelium	Stroma	Epithelium	stroma	Epithelium	Stroma
EGFR	+	++	+	+/++	++	++	++	++	+	+++	++	++
VCAN	−/+	+++	++	+	++	++	+++	+	++	+	+++	++
	PE no endometriosis				ESE no endometriosis				MSE no endometriosis
	Epithelium		Stroma		Epithelium		Stroma		Epithelium		Stroma
EGFR	++		++		+		+		++		+
VCAN	++		+		+/++		+		++		+

Abbreviations: PE, proliferative phase endometrium; ESE, early secretory phase endometrium; MSE, mid-secretory endometrium; VACN, versican; EGFR, epidermal growth factor receptor; −, no staining, −/+, a few stained cells; +, faint staining; ++, moderate staining; +++, strong staining.