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Chen J, Li XL, Huang M. Utility of 18F-FDG PET/CT for differential diagnosis between IgG4-related lymphadenopathy and angioimmunoblastic T-cell lymphoma. Clin Radiol 2024; 79:205-212. [PMID: 38218705 DOI: 10.1016/j.crad.2023.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/07/2023] [Accepted: 12/10/2023] [Indexed: 01/15/2024]
Abstract
AIM To explore the utility of the 2-[18F]-fluoro-2-deoxy-d-glucose (18F-FDG) positron-emission tomography (PET)/computed tomography (CT) in the differential diagnosis of IgG4-related lymphadenopathy (IgG4-RLAD) and angioimmunoblastic T-cell lymphoma (AITL). MATERIALS AND METHODS Retrospective analysis of 18F-FDG PET/CT imaging findings in clinically diagnosed IgG4-RLAD and AITL cases was undertaken to record the distribution, morphological characteristics, and imaging features of the affected lymph nodes, as well as FDG uptake of the spleen and bone marrow. Standardised uptake values normalised to lean body mass were evaluated for maximum (SULmax), average (SULavg), and peak values (SULpeak). Univariate and multivariate logistic regression was used to screen for statistically significant imaging findings to discriminate IgG4-RLAD from AITL. RESULTS Twenty-two cases of IgG4-RLAD (17 men, five women, median age 49.5 years) and 22 cases of AITL (16 men, six women, median age 55 years) were finally included in the analysis. There were no AITL patients with involvement of a single lymph node region. AITL patients had more involvement of the different nodal regions except cervical and pelvic nodal regions. A practical assessment method based on a combination of SULpeak-LN/SULavg-liver, SULpeak-spleen, and the number of involved nodal regions, improved the performance for differential diagnosis between both groups with an overall classification accuracy of 90.9%. CONCLUSIONS 18F-FDG PET/CT is a useful tool for distinguishing AITL from IgG4-RLAD, and it can also help determine the optimal biopsy site for suspected cases of IgG4-RLAD or AITL, reduce the need for re-biopsy procedures, and enable physicians to develop timely treatment strategies.
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Affiliation(s)
- J Chen
- Department of Nuclear Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
| | - X L Li
- Department of Nuclear Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - M Huang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
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Achieving the Cure of Follicular Lymphoma: is it Time to Finalize Treatment Strategies to Reach This Goal in a Subset of Patients? Mediterr J Hematol Infect Dis 2023; 15:e2023018. [PMID: 36908868 PMCID: PMC10000943 DOI: 10.4084/mjhid.2023.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 02/19/2023] [Indexed: 03/05/2023] Open
Abstract
NO ABSTRACT AVAILABLE
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Gupta G, Garg V, Mallick S, Gogia A. Current trends in diagnosis and management of follicular lymphoma. AMERICAN JOURNAL OF BLOOD RESEARCH 2022; 12:105-124. [PMID: 36147608 PMCID: PMC9490109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/30/2022] [Indexed: 06/16/2023]
Abstract
Follicular lymphoma (FL) originates from germinal center B cells, is the most prevalent form of indolent non-Hodgkin's lymphoma. Upfront management is based on stage, grade, and disease burden. Radiotherapy may be curative in limited disease while chemoimmunotherapy is preferred in advanced disease. Maintenance therapy is routinely administered but its role is debatable. Relapses are common and interval from initial therapy to relapse is most important prognostic factor for relapsed FL. Management of relapsed patients is based on the initial management, the interval from prior therapies, and the toxicity of available therapies. Multiple agents are available for patients after two or more lines of therapy, but sequencing remains poorly defined.
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Affiliation(s)
- Gopila Gupta
- Department of Clinical Hematology and Bone Marrow Transplant, Fortis Hospital Shalimar BaghNew Delhi, India
| | - Vikas Garg
- Department of Medical Oncology, Dr. B.R.A. IRCH, All India Institute of Medical SciencesNew Delhi, India
| | - Saumyaranjan Mallick
- Department of Pathology, All India Institute of Medical SciencesNew Delhi, India
| | - Ajay Gogia
- Department of Medical Oncology, Dr. B.R.A. IRCH, All India Institute of Medical SciencesNew Delhi, India
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Li H, Wang M, Zhang Y, Hu F, Wang K, Wang C, Gao Z. Prediction of prognosis and pathologic grade in follicular lymphoma using 18F-FDG PET/CT. Front Oncol 2022; 12:943151. [PMID: 35965552 PMCID: PMC9366037 DOI: 10.3389/fonc.2022.943151] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/06/2022] [Indexed: 11/24/2022] Open
Abstract
Purpose We investigated the utility of a new baseline PET parameter expressing lesion dissemination and metabolic parameters for predicting progression-free survival (PFS) and pathologic grade in follicular lymphoma (FL). Methods The baseline 18F-FDG PET/CT images of 126 patients with grade 1–3A FL were retrospectively analyzed. A novel PET/CT parameter characterizing lesion dissemination, the distance between two lesions that were furthest apart (Dmax), was calculated. The total metabolic tumor volume and total lesion glycolysis (TLG) were computed by using 41% of the maximum standardized uptake value (SUVmax) thresholding method. Results The 5-year PFS rate was 51.9% for all patients. In the multivariate analysis, high Dmax [P = 0.046; hazard ratio (HR) = 2.877], high TLG (P = 0.004; HR = 3.612), and elevated serum lactate dehydrogenase (P = 0.041; HR = 2.287) were independent predictors of PFS. A scoring system for prognostic stratification was established based on these three adverse factors, and the patients were classified into three risk categories: low risk (zero to one factor, n = 75), intermediate risk (two adverse factors, n = 29), and high risk (three adverse factors, n = 22). Patients in the high-risk group had a shorter 3-year PFS (21.7%) than those in the low- and intermediate-risk groups (90.6 and 44.6%, respectively) (P < 0.001). The C-index of our scoring system for PFS (0.785) was superior to the predictive capability of the Follicular Lymphoma International Prognostic Index (FLIPI), FLIPI2, and PRIMA-Prognostic Index (C-index: 0.628–0.701). The receiver operating characteristic curves and decision curve analysis demonstrated that the scoring system had better differentiation and clinical utility than these existing indices. In addition, the median SUVmax was significantly higher in grade 3A (36 cases) than in grades 1 and 2 FL (90 cases) (median: 13.63 vs. 11.45, P = 0.013), but a substantial overlap existed (range: 2.25–39.62 vs. 3.17–39.80). Conclusion TLG and Dmax represent two complementary aspects of the disease, capturing the tumor burden and lesion dissemination. TLG and Dmax are promising metrics for identifying patients at a high risk of progression or relapse. Additionally, SUVmax seems to have some value for distinguishing grade 3A from low-grade FL but cannot substitute for biopsy.
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Affiliation(s)
- Hongyan Li
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Min Wang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Yajing Zhang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Fan Hu
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Kun Wang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Chenyang Wang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
| | - Zairong Gao
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Molecular Imaging, Wuhan, China
- *Correspondence: Zairong Gao,
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Leccisotti L, Maccora D, Malafronte R, D'Alò F, Maiolo E, Annunziata S, Rufini V, Giordano A, Hohaus S. Predicting time to treatment in follicular lymphoma on watchful waiting using baseline metabolic tumour burden. J Cancer Res Clin Oncol 2022:10.1007/s00432-022-04138-3. [PMID: 35779106 DOI: 10.1007/s00432-022-04138-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 06/13/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Asymptomatic patients with follicular lymphoma (FL) and a low tumour burden can be followed without initial therapy, a strategy called watchful waiting (WW). Prediction of the time to treatment (TTT) is still a challenge. We investigated the prognostic value of baseline total metabolic tumour volume (TMTV) and whole-body total lesion glycolysis (WB-TLG) to predict TTT in patients with FL on WW. METHODS We conducted a retrospective study of 54 patients with FL (grade 1-3a) diagnosed between June 2013 and December 2019, staged with FDG PET/CT, and managed on WW. Median age was 62 years (range 34-85), stage was advanced (III-IV) in 57%, and FLIPI score was intermediate to high (≥ 2) in 52% of the patients. RESULTS The median TMTV and WB-TLG were 7.1 and 43.3, respectively. With a median follow-up of 59 months, 41% of patients started immuno-chemotherapy. The optimal cut-points to identify patients with TTT within 24 months were 14 for TMTV (AUC 0.70; 95% CI 51-88) and 64 for WB-TLG (AUC 0.71; 95% CI 52-89) (p < 0.005). The probability of not having started treatment within 24 months was 87% for TMTV < 14 and 53% for TMTV ≥ 14 (p < 0.005). TMTV was independent of the FLIPI score for TTT prediction. Patients with both FLIPI ≥ 2 and TMTV ≥ 14 had only an 18% probability of not having started treatment at 36 months, while this probability was 75% in patients with TMTV < 14. CONCLUSION Metabolic tumour volume parameters may add information to clinical scores to better predict TTT and better stratify patients for interventional studies.
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Affiliation(s)
- Lucia Leccisotti
- Unit of Nuclear Medicine, Department of Diagnostic Imaging, Radiation Oncology and Haematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy. .,University Department of Radiological Sciences and Haematology, Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Daria Maccora
- University Department of Radiological Sciences and Haematology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Rosalia Malafronte
- University Department of Radiological Sciences and Haematology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesco D'Alò
- University Department of Radiological Sciences and Haematology, Università Cattolica del Sacro Cuore, Rome, Italy.,Unit of Extramedullary Lymphoproliferative Diseases, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Elena Maiolo
- Unit of Extramedullary Lymphoproliferative Diseases, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Salvatore Annunziata
- Unit of Nuclear Medicine, Department of Diagnostic Imaging, Radiation Oncology and Haematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy
| | - Vittoria Rufini
- Unit of Nuclear Medicine, Department of Diagnostic Imaging, Radiation Oncology and Haematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy.,University Department of Radiological Sciences and Haematology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Alessandro Giordano
- Unit of Nuclear Medicine, Department of Diagnostic Imaging, Radiation Oncology and Haematology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Largo A. Gemelli, 8, 00168, Rome, Italy.,University Department of Radiological Sciences and Haematology, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Stefan Hohaus
- University Department of Radiological Sciences and Haematology, Università Cattolica del Sacro Cuore, Rome, Italy.,Unit of Extramedullary Lymphoproliferative Diseases, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
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