Table 2.

Immunohistochemical results of five patients with UTROSCT

	Case 1	Case 2	Case 3	Case 4	Case 5
CK	1+	1+	1+	2+	2+
WT-1	–	–	3+	–	2+
CD99	2+	2+	2+	2+	–
CR	2+	2+	2+	–	2+
α-Inhibin	–	1+	–	–	–
SF-1	–	2+	2+	–	2+
EMA	–	–	–	–	–
Desmin	–	2+	–	2+	1+
SMA	2+	1+	1+	3+	–
h-Caldesmon	2+	2+	2+	2+	1+
BCL-2	3+	3+	3+	3+	3+
ER	1+	1+	2+	3+	2+
PR	3+	3+	3+	3+	2+
CD10	1+	1+	1+	1+	–

‘–’ indicates negativity; ‘1+’ denotes weak or focal positivity, with a number of positive cells <25%; ‘2+’ indicates moderate positivity, with a number of positive cells of 25%–75%; ‘3+’ denotes diffuse strong positivity, with a number of positive cells >75%.

BCL-2, B cell lypmphoma-2; CD10, cluster of differentiation 10; CD99, cluster of differentiation 99; CK, cytokeratin; EMA, epithelial membrane antigen; ER, oestrogen receptor; PR, progesterone receptor; SF-1, steroidogenic factor-1; SMA, smooth muscle actin; UTROSCT, tumours resembling ovarian sex cord tumour; WT-1, Wilms' tumour 1.