Table IV.

Status of the immunohistochemical staining profiling of the confirmed proteins, CD10, desmin and β-catenin in patients with ESS.

Proteins	Endometrial stromal nodules	Low-grade ESS	Undifferentiated endometrial sarcomas	Cellular leiomyomata
CD10	2+	1+	0 to 1+	0
Desmin	0 to 1+	0 to 1+	0 to 1+	2+
β-catenin	2+	2+	1+	0

The expression of each protein was investigated by immunohistochemical staining. Due to the low incidence of endometrial stromal sarcoma (ESS), a combination of staining profiling data was obtained from several studies.