title: Squamous cell carcinoma of the tonsil incidentally detected by 18F-choline PET/CT.
abstract: We report a case of squamous cell carcinoma of the tonsil incidentally detected by F-choline PET/CT. A 55-year-old male patient with a history of prostate cancer underwent F-choline PET/CT for restaging. PET/CT revealed a focal area of increased F-choline uptake corresponding to the left tonsil. No other areas of abnormal F-choline uptake were detected in the rest of the body. Based on these PET/CT findings, the patient underwent clinical examination and biopsy of the left tonsil. Histology demonstrated the presence of a squamous cell carcinoma of the tonsil.
authors.affiliation: From the *Department of Nuclear Medicine and PET/CT Center, Oncology Institute of Southern Switzerland, Bellinzona, Switzerland; †Institute of Pathology, Locarno, Switzerland; and ‡Chair of Nuclear Medicine, University of Brescia and Spedali Civili di Brescia, Brescia, Italy.
authors.forename: Giorgio
authors.initials: G
authors.lastname: Treglia
authors.forename: Luca
authors.initials: L
authors.lastname: Ceriani
authors.forename: Jessica
authors.initials: J
authors.lastname: Barizzi
authors.forename: Francesco
authors.initials: F
authors.lastname: Bertagna
authors.forename: Luca
authors.initials: L
authors.lastname: Giovanella
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging* / Q000556:secondary; D002794:Choline / Q000031:analogs & derivatives; D006801:Humans; D033162:Incidental Findings; D008297:Male; D008875:Middle Aged; D064847:Multimodal Imaging; D049268:Positron-Emission Tomography; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed; D014067:Tonsillar Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary
chemical_list: D019275:Radiopharmaceuticals; C516370:fluoromethylcholine; D002794:Choline