作者单位:Penn State Univ, Coll Med, Div Otolaryngol Head & Neck Surg, Hershey, PA 17033 USA[1]Penn State Univ, Coll Med, Dept Radiol, Hershey, PA 17033 USA[2]Penn State Univ, Coll Med, Dept Surg, Div Gen Surg Subspecialties & Surg Oncol, Hershey, PA 17033[3]