BRAF and T-cell acute lymphoblastic leukemia: Apart from lymph node involvement, indications for postoperative 131I treatment were: a tumor > 1 cm, extra-capsular thyroid invasion or locoregional extension, unfavorable histological subtype (follicular, diffuse sclerosing, or tall cell-variant papillary cancer), multifocal disease, or BRAF-positive tumor specimens.