BRAF and follicular thyroid adenoma: BRAF non-V600E mutations were also observed in one case of follicular adenoma (5.3%), three cases of conventional papillary thyroid carcinoma (15.8%), one case of columnar cell variant papillary thyroid carcinoma (5.3%), one case of oncocytic carcinoma (5.3%), and two bone metastases of follicular thyroid carcinoma (10.5%).