501). An optimal cut-off level of TBS for diagnosing VF in PPGLs was 1.323, and its area under the curve was 0.702. The severity of catecholamine excess and maximal size of tumor were associated with decreased TBS in PPGLs patients (p=0.016 and p=0.020, respectively). Surgical resection of PPGLs improved TBS at follow-up, with 2.5% increase…[Read more]