Abstract

A 58-old-man underwent ¹⁸F-fluorocholine PET/CT for restaging of prostate cancer because of a rising level of prostate-specific antigen.¹⁸F-fluorocholine showed no significant tracer uptake at the site of the prostatectomy or the pelvic lymph nodes. Incidental high tracer uptake was observed in a 26 × 23 mm left thyroid nodule. A benign tumor of the thyroid (oncocytic adenoma of thyroid) was diagnosed after left loboisthmectomy.