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  • Title: FDG-PET/CT-guided rebiopsy may find clinically unsuspicious transformation of follicular lymphoma.
    Author: Rajamäki A, Kuitunen H, Sorigue M, Kokkonen SM, Kuittinen O, Sunela K.
    Journal: Cancer Med; 2023 Jan; 12(1):407-411. PubMed ID: 35661431.
    Abstract:
    AIM: The purpose of the study was to evaluate the clinical impact of fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) followed by a new biopsy from the site with maximum standardized uptake value (SUVmax) in case of high maximal SUV values, in detecting clinically unsuspected histologic transformations (HT) of follicular lymphoma (FL). METHODS: This retrospective study included all the patients who had undergone FDG-PET/CT during primary diagnosis or relapse of FL between 2010 and 2020 at Oulu University Hospital. RESULTS: The diagnosis changed from an indolent disease to a transformed lymphoma in >10% (7/63) of the patients who underwent diagnostic FDG-PET/CT. The HT risk associated with high SUVmax (>10) was 24% (7 of 29 performed biopsies). Four out of these seven patients with verified HT had no previous clinical suspicion of transformation. CONCLUSION: Our results suggest that a rebiopsy based on a high SUVmax in diagnostic FDG-PET/CT is valuable in detecting clinically unsuspected HT of FL.
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