Nasal-Type Extranodal Natural Killer/T-Cell Lymphoma Recurrence at Penile Glans Masquerading Urinary Contamination on 18F-FDG PET/CT

Abstract

A 69-year-old man with a history of extranodal NK/T-Cell lymphoma, nasal type (ENKTL-NT) performed an interim 18F-FDG PET/CT for response evaluation. It showed an intense focal uptake at his penile glans, which was suspected as urinary contamination initially. However, he complained with redness and swelling of his penis during further history inquiry. After careful observation, the diagnosis of ENKTL-NT recurrence at penile glans was highly suspected. It was confirmed by percutaneous biopsy of the penile glans finally.