期刊
CLINICAL LYMPHOMA & MYELOMA
卷 7, 期 4, 页码 291-295出版社
CIG MEDIA GROUP, LP
DOI: 10.3816/CLM.2007.n.005
关键词
follow-up; relapse; restaging
类别
Purpose: The purpose of this study was to evaluate the reliability of positron emission tomography (PET) in patients with follicular lymphoma (FL) after induction treatment. Patients and Methods: In all, 45 previously untreated patients with FL were studied with PET and computed tomography (CT) scans after chemotherapy induction treatment (fludarabine-containing regimens and CHOP [cyclophosphamide/doxorubicin/vincristine/prednisone] chemotherapy). Histopathologic analysis was performed when considered necessary. Results: After treatment, 4 of 5 patients (80%) who had CT-negative/PET-positive findings experienced relapse/progression, compared with only 1 of 22 patients (4.5%) in the CT-negative/PET-negative subset. Among the 18 patients with CT-positive findings, all 6 patients (100%) who had PET-positive findings experienced relapse or progression, compared with 1 of 12 patients (8.3%) who had PET-negative findings. The 2-year progression-free survival rates were 20% and 90% in the CT-negative/PET-positive and CT-positive/ PET-negative subsets, respectively (P= 0.0031). During the follow-up, 2 patients, who presented a PET positivity with a negative CT scan, underwent a lymph node biopsy, which confirmed the presence of FL infiltration. Conclusion: In patients with FL, persisting PET positivity is predictive of early disease progression, because it is still highly likely that patients with PET-negative findings will ultimately progress, but this has not yet been manifested during the period of observation.
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