68Ga-DOTATOC PET/CT Imaging of a Muscular Solitary Fibrous Tumor. (1st May 2023)

• Record Type: Journal Article
• Authors: Richard, Capucine; Cros, Jérôme; Seban, Romain-David; Champion, Laurence; Hescot, Ségolène
• Is Part Of: Clinical nuclear medicine. Volume 48:Number 5(2023)
• Page Start: e228
• Page End: e229
• Publication Date: 2023-05-01
• Subjects: 68Ga-DOTATOC PET/CT -- solitary fibrous tumor -- somatostatin receptor -- triceps brachii muscle -- 111In-pentetreotide scan -- 18F-FDG PET/CT; Nuclear medicine -- Periodicals; Radioisotope scanning -- Periodicals; Nuclear Medicine -- Periodicals; 616.07575
• DOI: 10.1097/RLU.0000000000004615
• Languages: English
• ISSNs: 0363-9762

Abstract

Abstract: A 73-year-old woman was referred for 68 Ga-DOTATOC PET/CT staging of a grade 2 pancreatic neuroendocrine tumor, which showed the primary pancreatic tumor, liver metastases, one left pleural metastasis, and high uptake in a mass of the right triceps brachii muscle. Two years before, she underwent 18 F-FDG PET/CT and 111 In-pentetreotide scan, respectively, with low and high uptake of each radiotracer in the triceps mass. Histopathological analysis revealed a solitary fibrous tumor. Immunohistochemistry showed no staining for SSTR-2 and SSTR-5, suggesting tumor overexpression of another somatostatin receptor. This case highlighted a potential pitfall on 68 Ga-DOTATOC PET/CT.