Expression of FOXG1 was also assessed by immunohistochemical staining in ovarian cancer tissue array (OVC961) (Pantomics Inc), which has 31 cases of epithelial ovarian cancer with different histological subtypes (serous, mucinous, endometrioid, clear cell/undifferentiated) and 6 cases of normal and benign tumour tissues. The gene discussed is FOXG1; the disease is ovarian cancer.