Our findings show that follicular thyroid carcinoma (PTC) may also harbor the PAX8-PPARgamma fusion gene and indicate that a subset of FVPTC shares some molecular features of FTA and FTC..     ///     The occurrence of the PAX8-PPARgamma fusion gene is thought to be restricted to follicular tumors (adenomas and carcinomas) of the thyroid (FTA and FTC).     ///    "Using interphase fluorescent in situ hybridization (FISH), together with recombinant tissue-type polymerase chain reaction (RT-PCR) and immunohistochemistry, we detected the PAX8-PPARgamma translocation in 4 of 8 cases of the follicular variant of papillary thyroid carcinoma (FVPTC) exclusively or almost exclusively (>95%) composed of follicles. "    ///    A subset of the follicular variant of papillary thyroid carcinoma harbors the PAX8-PPARgamma translocation.. 