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  • Title: Bone marrow FDG-PET/CT in Hodgkin lymphoma revisited: do imaging and pathology match?
    Author: Adams HJ, Kwee TC, Fijnheer R, Dubois SV, Nievelstein RA, de Klerk JM.
    Journal: Ann Nucl Med; 2015 Feb; 29(2):132-7. PubMed ID: 25348549.
    Abstract:
    PURPOSE: To directly compare visual and quantitative (18)F-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography (FDG-PET/CT) to bone marrow biopsy (BMB) findings in the right posterior iliac crest in patients with newly diagnosed Hodgkin lymphoma. MATERIALS AND METHODS: This retrospective study included 26 patients with newly diagnosed Hodgkin lymphoma in whom FDG-PET/CT was performed before BMB of the right posterior iliac crest. The right posterior iliac crest was assessed for bone marrow involvement, both visually and semi-quantitatively [using maximum standardized uptake value (SUVmax) measurements]. BMB of right the posterior iliac crest was used as reference standard. RESULTS: BMB of the right posterior iliac crest was positive in 5 (19.2 %) of 26 patients. There was full agreement between visual FDG-PET/CT and BMB findings in the right posterior iliac crest (i.e. no false-positive or false-negative FDG-PET/CT findings). Accordingly, sensitivity, specificity, positive predictive value, and negative predictive value of visual FDG-PET/CT assessment for the detection of bone marrow involvement in the right posterior iliac crest were 100 % (5/5) (95 % CI 51.1-100 %), 100 % (21/21) (95 % CI 81.8-100 %), 100 % (5/5) (95 % CI 51.1-100 %), and 100 % (21/21) (95 % CI 81.8-100 %), respectively. SUVmax of BMB-positive cases (mean ± SD: 3.4 ± 0.85) was nearly significantly higher (P = 0.052) than that of BMB-negative cases (mean ± SD 2.7 ± 0.63). CONCLUSION: This histopathological correlation study confirms the very high diagnostic value of FDG-PET/CT in the detection of bone marrow involvement in newly diagnosed Hodgkin lymphoma, and supports the substitution of BMB with FDG-PET/CT in this setting.
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