GLI2 and ovarian serous carcinoma: To define whether the FHL2-GLI2 fusion gene would result in activation of this pathway in SSTs, we performed a differential gene expression analysis between the eight human SSTs subjected to RNA-sequencing, common-type high-grade serous ovarian carcinomas derived from TCGA11 (n = 16) and other sex cord-stromal tumors (n = 11).