scholarly journals Early Interim Chemotherapy Response Evaluation by F-18 FDG PET/CT in Diffuse Large B Cell Lymphoma

Diagnostics ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1002
Author(s):  
Hye Park ◽  
Eun Han ◽  
Joo O ◽  
Byung-Ock Choi ◽  
Gyeongsin Park ◽  
...  

Fluorine-18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) after one cycle of standard chemotherapy in patients with diffuse large B cell lymphoma (DLBCL) was assessed. Prospectively enrolled 51 patients had four PET/CT studies using the same protocol and system: at baseline and after one, three, and six cycles of chemotherapy (PET0, PET1, PET3, PET6). The PET1 and PET6 Deauville five-point score (D5PS) agreed in 60.8%, while PET3 and PET6 D5PS agreed in 90.2%. The absolute and percent changes of peak standard uptake value corrected for lean body mass (SULpeak) compared to baseline were significantly different between PET1 and PET3 (p = 0.001, p < 0.001) and PET1 and PET6 (p = 0.002, p = 0.001), but not between PET3 and PET6 (p = 0.276, p = 0.181). The absolute SULpeak from PET1 predicted treatment failure with accuracy of 78.4% (area under the curve 0.73, p = 0.023). D5PS, SULpeak, and metabolic tumor volume (MTV) were not statistically different between responders versus non-responders, or the one year disease-free versus relapse groups. D5PS and PERCIST responses showed 100% agreement at end-of-therapy. In conclusion, the responses after three and six cycles of therapy showed high degree of agreement. D5PS or MTV after one cycle of chemotherapy could not predict response or one-year disease-free status, but the SULpeak from PET1 was associated with response to first line therapy in DLBCL. Deauville and PERCIST criteria show high concordance.

2021 ◽  
pp. 1-9
Author(s):  
François Allioux ◽  
Damaj Gandhi ◽  
Jean-Pierre Vilque ◽  
Cathy Nganoa ◽  
Anne-Claire Gac ◽  
...  

2016 ◽  
Vol 71 (3) ◽  
pp. 280-286 ◽  
Author(s):  
S.H. Kwon ◽  
D.R. Kang ◽  
J. Kim ◽  
J.-K. Yoon ◽  
S.J. Lee ◽  
...  

2021 ◽  
Vol 14 (6) ◽  
Author(s):  
Mastane Saneii ◽  
Pedram Fadavi ◽  
Kambiz Novin ◽  
Maryam Garousi

Introduction: PBL is a rare form of extranodal lymphoma. The most common pathology is diffuse large B cell lymphoma and most patients are diagnosed at stages 1 and 2. The therapeutic options undertaken so far include surgery, radiotherapy, and chemotherapy Case Presentation: The patient was a 54-year old woman with localized primary breast DLBCL. The patient underwent 6 courses of chemotherapy with an RCHOP regimen followed by radiotherapy of the breast and regional lymph nodes with a 40 Gy dose. The patient was in complete remission on PET scan 3 months later. Around one year after, the patient experienced relapse in the contralateral breast. Conclusions: In the pattern of relapse of patients, there is a tendency for extranodal relapse. In some studies maximum level of relapse occurring in CNS and some advocate CNS prophylaxis in these patients. The best outcome is for patients treated with chemotherapy including rituximab followed by radiation. We reviewed some studies in the aspect of treatment modalities and site of relapsed.


2021 ◽  
Vol 11 ◽  
Author(s):  
Huan Chen ◽  
Tao Pan ◽  
Yizi He ◽  
Ruolan Zeng ◽  
Yajun Li ◽  
...  

Primary mediastinal large B-cell lymphoma (PMBCL) is a distinct clinicopathologic disease from other types of diffuse large B-cell lymphoma (DLBCL) with unique prognostic features and limited availability of clinical data. The current standard treatment for newly diagnosed PMBCL has long been dependent on a dose-intensive, dose-adjusted multi-agent chemotherapy regimen of rituximab plus etoposide, prednisone, vincristine, cyclophosphamide, and doxorubicin (DA-R-EPOCH). Recent randomized trials have provided evidence that R-CHOP followed by consolidation radiotherapy (RT) is a valuable alternative option to first-line treatment. For recurrent/refractory PMBCL (rrPMBCL), new drugs such as pembrolizumab and CAR-T cell therapy have proven to be effective in a few studies. Positron emission tomography-computed tomography (PET-CT) is the preferred imaging modality of choice for the initial phase of lymphoma treatment and to assess response to treatment. In the future, baseline quantitative PET-CT can be used to predict prognosis in PMBCL. This review focuses on the pathology of PMBCL, underlying molecular basis, treatment options, radiotherapy, targeted therapies, and the potential role of PET-CT to guide treatment choices in this disease.


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