Intracavernous Schwannoma Characterized With 18F-FDG, 68Ga-DOTATOC, and 18F-Choline PET. (February 2022)

• Record Type: Journal Article
• Authors: Farce, Julien; Lecouillard, Isabelle; Carsin Nicol, Béatrice; Bretonnier, Maxime; Girard, Antoine
• Is Part Of: Clinical nuclear medicine. Volume 47:Number 2(2022)
• Publication Date: 2022-02
• Subjects: schwannoma -- 18F-FDG -- 68Ga-DOTATOC -- 18F-choline -- positron emission tomography; Nuclear medicine -- Periodicals; Radioisotope scanning -- Periodicals; Nuclear Medicine -- Periodicals; 616.07575
• DOI: 10.1097/RLU.0000000000003929
• Languages: English
• ISSNs: 0363-9762

Abstract

Abstract : Abstract: We report the case of a 75-year-old man with history of prostate cancer whose left intracavernous lesion was successfully characterized by 3 PETs performed successively with different tracers. This poorly characterized tumor was initially discovered on an MRI conducted to investigate an acute diplopia and slowly growing during follow-up. On 18 F-FDG PET, the lesion showed no significant uptake, and no extracranial lesion was found nor did it have increased 68 Ga-DOTATOC uptake. Finally, this tumor displayed a high 18 F-choline uptake, and no extracranial lesion was revealed with this tracer. The diagnosis of schwannoma without malignancy criterion was proven by biopsy.