title: AJR teaching file: left neck mass evaluated by PET/CT.
authors: Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
authors: Geoffrey B
authors: GB
authors: Johnson
authors: Patrick J
authors: PJ
authors: Peller
authors: Armita
authors: A
authors: Bahrami
authors: Rathan M
authors: RM
authors: Subramaniam