Home HOME Neoplasma 2020 Neoplasma Vol.67, No.4, p.939–945, 2020

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Founded: 1954
ISSN 0028-2685
ISSN 1338-4317 (online)

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Neoplasma Vol.67, No.4, p.939–945, 2020

Title: Diagnostic relevance of 18F-FDG PET/CT in newly diagnosed patients with monoclonal gammopathy of undetermined significance (MGUS): Single-center experience
Author: V. Sandecka, Z. Adam, M. Krejci, M. Stork, Z. Rehak, R. Koukalova, S. Sevcikova, L. Brozova, Z. Kral, J. Mayer, L. Pour

Abstract: Monoclonal gammopathy of undetermined significance (MGUS) is a known precursor of more serious cancers, such as multiple myeloma (MM), Waldenström macroglobulinemia (MW) and other lymphoproliferative disorders. Using 18F-FDG PET/CT, we aimed to evaluate its benefit in early detection of various accompanying disorders and illnesses in MGUS patients. We prospectively analyzed the diagnostic relevance of 18F-FDG PET/CT in 390 newly diagnosed MGUS patients. On 18F-FDG PET/CT scans, the presence of focal or diffuse areas of detectable increased tracer uptake was recorded in 37 (9.5%) MGUS patients. The most frequent pathology was lymphadenopathy (3.8%), followed by thyroid diseases (2.1%), rheumatic diseases (1.8%), and other solid malignancies (1.5%). These results have major implications for confirmed associations of MGUS with numerous malignant and non-malignant disorders. We believe that 18F-FDG PET/CT imaging in newly diagnosed MGUS patients may be useful in early detection of other serious pathologies, not only in predicting progression of MGUS to active MM, and should be strongly recommended if available.

Keywords: monoclonal gammopathy, cancer, multiple myeloma, PET/CT
Published online: 22-Jun-2020
Year: 2020, Volume: 67, Issue: 4 Page From: 939, Page To: 945

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