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Rozenblum L, Houillier C, Baptiste A, Soussain C, Edeline V, Naggara P, Soret M, Causse-Lemercier V, Willems L, Choquet S, Ursu R, Galanaud D, Belin L, Hoang-Xuan K, Kas A. Interim FDG-PET improves treatment failure prediction in primary central nervous system lymphoma: An LOC network prospective multicentric study. Neuro Oncol 2024; 26:1292-1301. [PMID: 38366824 PMCID: PMC11226866 DOI: 10.1093/neuonc/noae029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND The purpose of our study was to assess the predictive and prognostic role of 2-18F-fluoro-2-deoxy-d-glucose (FDG) positron emission tomography (PET)/MRI during high-dose methotrexate-based chemotherapy (HD-MBC) in de novo primary central nervous system lymphoma (PCNSL) patients aged 60 and above. METHODS This prospective multicentric ancillary study included 65 immunocompetent patients who received induction HD-MBC as part of the BLOCAGE01 phase III trial. FDG-PET/MRI were acquired at baseline, post 2 cycles (PET/MRI2), and posttreatment (PET/MRI3). FDG-PET response was dichotomized with "positive" indicating persistent tumor uptake higher than the contralateral mirroring brain region. Performances of FDG-PET and International PCNSL Collaborative Group criteria in predicting induction response, progression-free survival (PFS), and overall survival (OS) were compared. RESULTS Of the 48 PET2 scans performed, 9 were positive and aligned with a partial response (PR) on MRI2. Among these, 8 (89%) progressed by the end of the induction phase. In contrast, 35/39 (90%) of PET2-negative patients achieved complete response (CR). Among the 18 discordant responses at interim (PETCR/MRIPR), 83% ultimately achieved CR. Eighty-seven percent of the PET2-negative patients were disease free at 6 months versus 11% of the PET2-positive patients (P < .001). The MRI2 response did not significantly differentiate patients based on their PFS, regardless of whether they were in CR or PR. Both PET2 and MRI2 independently predicted OS in multivariate analysis, with PET2 showing a stronger association. CONCLUSIONS Our study highlights the potential of interim FDG-PET for early management of PCNSL patients. Response-driven treatment based on PET2 may guide future clinical trials. TRIAL LOCALYZE, NCT03582254, ancillary of phase III clinical trial BLOCAGE01, NCT02313389 (Registered July 10, 2018-retrospectively registered) https://clinicaltrials.gov/ct2/show/NCT03582254?term=LOCALYZE&draw=2&rank=1.
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Affiliation(s)
- Laura Rozenblum
- Department of Nuclear Medicine, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique—Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
- INSERM, CNRS, Laboratoire d’Imagerie Biomédicale, Sorbonne Université, Paris, France
| | - Caroline Houillier
- Department of Neurology 2 Mazarin, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière—Charles Foix, Inserm, CNRS, Institut du Cerveau, Sorbonne Université, Paris, France
| | - Amandine Baptiste
- Department of Public Health, INSERM, Institut Pierre Louis d’Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié-Salpêtrière—Charles Foix, Sorbonne Université, Paris, France
| | - Carole Soussain
- Department of Haematology, Institut Curie, Site Saint-Cloud and INSERM U932 Institut Curie, Université PSL, Paris, France
| | | | - Philippe Naggara
- Department of Nuclear Medicine, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique—Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
| | - Marine Soret
- Department of Nuclear Medicine, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique—Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
| | - Valérie Causse-Lemercier
- Department of Nuclear Medicine, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique—Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
| | - Lise Willems
- Department of Haematology, Cochin Hospital, AP-HP, Paris
| | - Sylvain Choquet
- Department of Haematology, Groupe Hospitalier Pitié-Salpêtrière, AP-HP, Sorbonne Université, Paris, France
| | - Renata Ursu
- Department of Neurology, AP-HP, Hôpital Saint-Louis, Paris, France
| | - Damien Galanaud
- Department of Neuroradiology, Groupe Hospitalier Pitié-Salpêtrière, AP-HP, Sorbonne Université, Paris, France
| | - Lisa Belin
- Department of Public Health, INSERM, Institut Pierre Louis d’Epidémiologie et de Santé Publique, AP-HP, Hôpitaux Universitaires Pitié-Salpêtrière—Charles Foix, Sorbonne Université, Paris, France
| | - Khê Hoang-Xuan
- Department of Neurology 2 Mazarin, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière—Charles Foix, Inserm, CNRS, Institut du Cerveau, Sorbonne Université, Paris, France
| | - Aurélie Kas
- Department of Nuclear Medicine, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique—Hôpitaux de Paris (AP-HP), Sorbonne Université, Paris, France
- INSERM, CNRS, Laboratoire d’Imagerie Biomédicale, Sorbonne Université, Paris, France
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Norikane T, Mitamura K, Yamamoto Y, Manabe Y, Murao M, Arai-Okuda H, Hatakeyama T, Miyake K, Nishiyama Y. Comparative evaluation of 11C-methionine and 18F-fluorodeoxyglucose positron emission tomography for distinguishing between primary central nervous system lymphoma and isocitrate dehydrogenase-wildtype glioblastoma. J Neurooncol 2024; 166:195-201. [PMID: 38160415 DOI: 10.1007/s11060-023-04534-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 12/07/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE Distinguishing between primary central nervous system lymphoma (PCNSL) and isocitrate dehydrogenase (IDH)-wildtype glioblastoma is important for therapeutic decision-making. This study aimed to compare the performance of 11C-methionine (MET) and 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) for distinguishing between these two major malignant brain tumors. METHODS We retrospectively conducted qualitative and semiquantitative analyses of pre-treatment MET and FDG PET/computed tomography (CT) images of 22 patients with PCNSL and 64 patients with IDH-wildtype glioblastoma. For semiquantitative analysis, we calculated the tumor-to-normal tissue (T/N) ratio by dividing the maximum standardized uptake value (SUV) for the tumor (T) by the average SUV for the normal tissue (N). For performance evaluation, we employed receiver operating characteristic curve analysis and calculated the areas under the curve (AUC) values. RESULTS In the qualitative analysis, all PCNSLs and IDH-wildtype glioblastomas were MET-positive, while 95% and 84% of PCNSLs and IDH-wildtype glioblastomas, respectively, were FDG-positive. Eleven patients were excluded from the FDG PET/CT semiquantitative analysis because of hyperglycemia. There was no difference in MET T/N ratio between PCNSL and IDH-wildtype glioblastoma (p = 0.37). FDG T/N ratio was significantly higher in PCNSL than in IDH-wildtype glioblastoma (p < 0.001). The AUC value for distinguishing PCNSL from IDH-wildtype glioblastoma was significantly higher for the FDG T/N ratio (0.871) than for the MET T/N ratio (0.565) (p = 0.0027). CONCLUSION MET PET could detect both PCNSL and IDH-wildtype glioblastoma, but unlike FDG PET, it could not distinguish between these two major malignant brain tumors.
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Affiliation(s)
- Takashi Norikane
- Department of Radiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Katsuya Mitamura
- Department of Radiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Yuka Yamamoto
- Department of Radiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan.
| | - Yuri Manabe
- Department of Radiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Mitsumasa Murao
- Department of Radiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Hanae Arai-Okuda
- Department of Radiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
| | - Tetsuhiro Hatakeyama
- Department of Neurological Surgery, Faculty of Medicine, Kagawa University, Miki-cho, Kagawa, Japan
| | - Keisuke Miyake
- Department of Neurological Surgery, Faculty of Medicine, Kagawa University, Miki-cho, Kagawa, Japan
| | - Yoshihiro Nishiyama
- Department of Radiology, Faculty of Medicine, Kagawa University, 1750-1 Ikenobe, Miki-cho, Kita-gun, Kagawa, 761-0793, Japan
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Clinical Value of PET.CT Based on Big Data in Colorectal and Peritoneal Metastatic Cancer. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:6120337. [PMID: 36262991 PMCID: PMC9546711 DOI: 10.1155/2022/6120337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/15/2022] [Accepted: 08/29/2022] [Indexed: 01/26/2023]
Abstract
This study focuses on the evaluation of the clinical utility of PET-CT imaging in peritoneal metastases and colorectal cancer. One hundred patients with colorectal peritoneal metastases, who underwent whole-body PET-CT imaging from January 2015 to December 2019, were selected as the experimental group, and 20 healthy individuals were selected as the control group. The SUVmax of the two groups of patients was 5.73 ± 3.84 and 2.70 ± 2.32, respectively, and the difference was statistically significant. The SUVmax AUC was 0.720, and the AUC of serum AFP, CEA, CA125, and CA199 were 0.596, 0.677, 0.642, and 0.696, respectively. Conclusion. 100 patients with colorectal and peritoneal metastatic cancer underwent PET/CT examination. The follow-up or other imaging examinations confirmed the diagnosis. Analysis of the ROC curve in this study found that with a peritoneal SUVmax> 3.2 as the diagnostic index for colorectal peritoneal metastatic cancer, the sum of sensitivity and specificity reached the maximum.
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Role of Positron Emission Tomography in Primary Central Nervous System Lymphoma. Cancers (Basel) 2022; 14:cancers14174071. [PMID: 36077613 PMCID: PMC9454946 DOI: 10.3390/cancers14174071] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/05/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Primary central nervous system lymphoma (PCNSL) is a rare but highly aggressive lymphoma with increasing incidence in immunocompetent patients. To date, the only established biomarkers for survival are age and functional status. Currently, the magnetic resonance imaging (MRI) criteria of the International Collaborative Group on Primary Central Nervous System Lymphoma are the only ones recommended for follow-up. However, early occurrence of recurrence after treatment in patients with a complete response on MRI raises the question of its performance in assessing residual disease. While the use of 18F-fluorodeoxyglucose body positron emission tomography for identification of systemic disease has been established and can be pivotal in patient treatment decisions, the role of brain PET scan is less clear. Here we review the potential role of PET in the management of patients with PCNSL, both at diagnosis and for follow-up under treatment. Abstract The incidence of primary central nervous system lymphoma has increased over the past two decades in immunocompetent patients and the prognosis remains poor. A diagnosis and complete evaluation of the patient is needed without delay, but histologic evaluation is not always available and PCNSL can mimic a variety of brain lesions on MRI. In this article, we review the potential role of 18F-FDG PET for the diagnosis of PCNSL in immunocompetent and immunocompromised patients. Its contribution to systemic assessment at the time of diagnosis has been well established by expert societies over the past decade. In addition, 18F-FDG provides valuable information for differential diagnosis and outcome prediction. The literature also shows the potential role of 18F-FDG as a therapeutic evaluation tool during the treatment and the end of the treatment. Finally, we present several new radiotracers that may have a potential role in the management of PCNSL in the future.
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PET Imaging in Neuro-Oncology: An Update and Overview of a Rapidly Growing Area. Cancers (Basel) 2022; 14:cancers14051103. [PMID: 35267411 PMCID: PMC8909369 DOI: 10.3390/cancers14051103] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/08/2022] [Accepted: 02/19/2022] [Indexed: 12/21/2022] Open
Abstract
Simple Summary Positron emission tomography (PET) is a functional imaging technique which plays an increasingly important role in the management of brain tumors. Owing different radiotracers, PET allows to image different metabolic aspects of the brain tumors. This review outlines currently available PET radiotracers and their respective indications in neuro-oncology. It specifically focuses on the investigation of gliomas, meningiomas, primary central nervous system lymphomas as well as brain metastases. Recent advances in the production of PET radiotracers, image analyses and translational applications to peptide radionuclide receptor therapy, which allow to treat brain tumors with radiotracers, are also discussed. The objective of this review is to provide a comprehensive overview of PET imaging’s potential in neuro-oncology as an adjunct to brain magnetic resonance imaging (MRI). Abstract PET plays an increasingly important role in the management of brain tumors. This review outlines currently available PET radiotracers and their respective indications. It specifically focuses on 18F-FDG, amino acid and somatostatin receptor radiotracers, for imaging gliomas, meningiomas, primary central nervous system lymphomas as well as brain metastases. Recent advances in radiopharmaceuticals, image analyses and translational applications to therapy are also discussed. The objective of this review is to provide a comprehensive overview of PET imaging’s potential in neuro-oncology as an adjunct to brain MRI for all medical professionals implicated in brain tumor diagnosis and care.
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Krebs S, Barasch JG, Young RJ, Grommes C, Schöder H. Positron emission tomography and magnetic resonance imaging in primary central nervous system lymphoma-a narrative review. ANNALS OF LYMPHOMA 2021; 5. [PMID: 34223561 PMCID: PMC8248935 DOI: 10.21037/aol-20-52] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review addresses the challenges of primary central nervous system (CNS) lymphoma diagnosis, assessment of treatment response, and detection of recurrence. Primary CNS lymphoma is a rare form of extra-nodal non-Hodgkin lymphoma that can involve brain, spinal cord, leptomeninges, and eyes. Primary CNS lymphoma lesions are most commonly confined to the white matter or deep cerebral structures such as basal ganglia and deep periventricular regions. Contrast-enhanced magnetic resonance imaging (MRI) is the standard diagnostic modality employed by neuro-oncologists. MRI often shows common morphological features such as a single or multiple uniformly well-enhancing lesions without necrosis but with moderate surrounding edema. Other brain tumors or inflammatory processes can show similar radiological patterns, making differential diagnosis difficult. [18F]-fluorodeoxyglucose (FDG) positron emission tomography (PET) has selected utility in cerebral lymphoma, especially in diagnosis. Primary CNS lymphoma can sometimes present with atypical findings on MRI and FDG PET, such as disseminated disease, non-enhancing or ring-like enhancing lesions. The complementary strengths of PET and MRI have led to the development of combined PET-MR systems, which in some cases may improve lesion characterization and detection. By highlighting active developments in this field, including advanced MRI sequences, novel radiotracers, and potential imaging biomarkers, we aim to spur interest in sophisticated imaging approaches.
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Affiliation(s)
- Simone Krebs
- Molecular Imaging and Therapy Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Julia G Barasch
- Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Robert J Young
- Neuroradiology Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Christian Grommes
- Brain Tumor Center, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Neurology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Heiko Schöder
- Molecular Imaging and Therapy Service, Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Primary central nervous system lymphoma: status and advances in diagnosis, molecular pathogenesis, and treatment. Chin Med J (Engl) 2021; 133:1462-1469. [PMID: 32452898 PMCID: PMC7339152 DOI: 10.1097/cm9.0000000000000844] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Primary central nervous system lymphoma (PCNSL) is a rare group of extra-nodal non-Hodgkin lymphoma which is confined to the central nervous system or eyes. This article aims to present a brief profile of PCNSL diagnosis and treatment in immunocompetent patients. The authors retrieved information from the PubMed database up to September 2019. The annual incidence of PCNSL increased over the last four decades. The prognosis of PCNSL has improved mainly due to the introduction and wide-spread use of high-dose methotrexate, which is now the backbone of all first-line treatment polychemotherapy regimens. Gene expression profiling and next-generation sequencing analyses have revealed mutations that induce activation of nuclear factor-κB, B cell antigen receptor, and Janus kinases/signal transducer and activator of transcription proteins signal pathways. Some novel agents are investigated in the treatment of relapsed PCNSL including immunotherapy and targeted therapy. In particular, lenalidomide and ibrutinib have demonstrated durable efficiency. Treatment of PCNSL has evolved in the last 40 years and survival outcomes have improved in most patient groups, but there is still room to improve outcome by optimizing current chemotherapy and novel agents.
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van der Meulen M, Postma AA, Smits M, Bakunina K, Minnema MC, Seute T, Cull G, Enting RH, van der Poel M, Stevens WBC, Brandsma D, Beeker A, Doorduijn JK, Issa S, van den Bent MJ, Bromberg JEC. Extent of radiological response does not reflect survival in primary central nervous system lymphoma. Neurooncol Adv 2021; 3:vdab007. [PMID: 33615224 PMCID: PMC7883767 DOI: 10.1093/noajnl/vdab007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background In primary central nervous system lymphoma (PCNSL), small enhancing lesions can persist after treatment. It is unknown whether a difference in response category (complete response [CR], complete response unconfirmed [CRu], or partial response [PR]) reflects survival. We aimed to determine the value of a central radiology review on response assessment and whether the extent of response influenced progression-free and/or overall survival. Methods All patients in the HOVON 105/ALLG NHL 24 study with at least a baseline MRI and one MRI made for response evaluation available for central review were included. Tumor measurements were done by 2 independent central reviewers, disagreements were adjudicated by a third reviewer. Crude agreement and interobserver agreement (Cohen's kappa) were calculated. Differences in progression-free and overall survival between different categories of response at the end-of-protocol-treatment were assessed by the log-rank test in a landmark survival-analysis. Results Agreement between the central reviewers was 61.7% and between local and central response assessment was 63.0%. Cohen's kappa's, which corrects for expected agreement, were 0.44 and 0.46 (moderate), respectively. Progression agreement or not was 93.3% (kappa 0.87) between local and central response assessment. There were no significant differences in progression-free and overall survival between patients with CR, CRu, or PR at the end-of-protocol-treatment, according to both local and central response assessment. Conclusions Reliability of response assessment (CR/CRu/PR) is moderate even by central radiology review and these response categories do not reliably predict survival. Therefore, primary outcome in PCNSL studies should be survival rather than CR or CR/CRu-rate.
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Affiliation(s)
- Matthijs van der Meulen
- Department of Neuro-Oncology, Erasmus MC Cancer Institute, Brain Tumor Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Alida A Postma
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, School for Mental Health and Sciences, Maastricht, The Netherlands
| | - Marion Smits
- Department of Radiology and Nuclear Medicine, Erasmus MC Cancer Institute, Brain Tumor Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Katerina Bakunina
- Department of Hematology, HOVON Data Center, Erasmus MC Cancer Institute, Rotterdam, The Netherlands
| | - Monique C Minnema
- Department of Hematology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tatjana Seute
- Department of Neurology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Gavin Cull
- Haematology Department, Sir Charles Gairdner Hospital and PathWest Laboratory Medicine, Nedlands, Australia.,University of Western Australia, Crawley, Australia
| | - Roelien H Enting
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | | | - Wendy B C Stevens
- Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Dieta Brandsma
- Department of Neuro-Oncology, Netherlands Cancer Institute-Antoni van Leeuwenhoek, Amsterdam, The Netherlands
| | - Aart Beeker
- Department of Hematology, Spaarne Gasthuis, Haarlem, The Netherlands
| | - Jeanette K Doorduijn
- Department of Hematology, Erasmus MC Cancer Institute, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Samar Issa
- Department of Haematology, Middlemore Hospital, Auckland, New Zealand
| | - Martin J van den Bent
- Department of Neuro-Oncology, Erasmus MC Cancer Institute, Brain Tumor Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jacoline E C Bromberg
- Department of Neuro-Oncology, Erasmus MC Cancer Institute, Brain Tumor Center, University Medical Center Rotterdam, Rotterdam, The Netherlands
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Tsang M, Cleveland J, Rubenstein JL. On point in primary CNS lymphoma. Hematol Oncol 2020; 38:640-647. [PMID: 32510610 DOI: 10.1002/hon.2761] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/01/2020] [Accepted: 06/02/2020] [Indexed: 01/03/2023]
Abstract
Primary CNS lymphoma (PCNSL) is an aggressive brain tumor that represents a significant challenge both to elucidate its biological pathogenesis as well as to develop definitive precision medicines with minimal collateral toxicity. We highlight the key issues in diagnosis and treatment and focus on emerging technologies, current options among consolidation strategies, and biological agents. We anticipate that further development of molecular diagnostics and molecular imaging approaches that elucidate minimal residual disease in brain parenchyma, leptomeninges, intraocular compartments and even bone marrow will greatly impact the delivery and timing of cytotoxic and biological therapies. Implementation of these approaches is likely essential to clarify ongoing discrepancies in the interpretation of clinical trial results that currently are based on relatively unrefined definitions of response. While the results of early phase investigations involving ibrutinib and the IMiD agents, lenalidomide, pomalidomide, as well as avadomide, strongly support the hypothesis that the B-cell receptor (BCR) pathway, involving MYD88 and CD79B and NF-kB activation, is critical to the pathogenesis of PCNSL, much work is needed to elucidate mechanisms of resistance. Similarly, development of strategies to overcome immunosuppressive mechanisms that are upregulated in the tumor microenvironment is a high priority. Finally, ongoing evidence supports the hypothesis that the blood-brain barrier represents a significant impediment to efficient brain tumor penetration of novel therapeutic agents and innovative strategies of drug delivery remain essential to further improve outcomes.
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Affiliation(s)
- Mazie Tsang
- Division of Hematology/Oncology, University of California, San Francisco, California, USA
| | - Joseph Cleveland
- Department of Medicine, University of California, San Francisco, California, USA
| | - James L Rubenstein
- Division of Hematology/Oncology, University of California, San Francisco, California, USA.,Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California, USA
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Albano D, Bertoli M, Battistotti M, Rodella C, Statuto M, Giubbini R, Bertagna F. Prognostic role of pretreatment 18F-FDG PET/CT in primary brain lymphoma. Ann Nucl Med 2018; 32:532-541. [PMID: 29982990 DOI: 10.1007/s12149-018-1274-8] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 07/03/2018] [Indexed: 02/01/2023]
Abstract
OBJECTIVE Primary brain lymphoma is an aggressive extranodal non-Hodgkin lymphoma with poor prognosis. Many possible prognostic factors are investigated with controversial results, but possible prognostic role of 18fluorine-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) features remains unclear. Our aim was to study the metabolic behavior of brain lymphoma at 18F-FDG PET/CT and the prognostic impact of qualitative and semiquantitative PET/CT parameters. METHODS Between 2006 and 2018, 52 patients (26 females and 26 males; mean age: 61 years) with histologically confirmed diagnosis of brain lymphoma who underwent 18F-FDG PET/CT for staging before any treatment were included. PET images were qualitatively and semiquantitatively analyzed by measuring the maximum standardized uptake value body weight (SUVbw), lean body mass (SUVlbm), body surface area (SUVbsa), metabolic tumor volume (MTV), and total lesion glycolysis (TLG). The Kaplan-Meier method was used to estimate the progression-free survival (PFS) and overall survival (OS) times. Cox regression models were performed to determinate the relation between qualitative and semiquantitative PET/CT features and OS and PFS. RESULTS Thirty-nine patients had positive 18F-FDG PET/CT showing 18F-FDG uptake (mean SUVbw of 18.2; SUVlbm of 13.9; SUVbsa of 5; MTV of 14.8; TLG of 153) at the corresponding cerebral lesion; the remaining 13 were not 18F-FDG avid. Relapse or progression of disease occurred in 22 patients with an average time of 9.7 months; death occurred in 18 patients with an average of 7.9 months. There was no difference in PFS and OS between baseline PET/CT positive and negative groups or considering SUVbw, SUVlbm, and SUVbsa. PFS and OS was significantly shorter in patients with MTV ≥ 9.8 cm3 (p = 0.037 and p = 0.022, respectively) and TLG ≥ 94 (p = 0.045 and p = 0.0430, respectively). CONCLUSIONS 18F-FDG avidity was noted in 75% of cases. Only metabolic tumor parameters (MTV and TLG) were independently correlated with PFS and OS.
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Affiliation(s)
- Domenico Albano
- Nuclear Medicine, University of Brescia and Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy.
| | - Mattia Bertoli
- Nuclear Medicine, University of Brescia and Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy
| | - Marco Battistotti
- Nuclear Medicine, University of Brescia and Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy
| | - Carlo Rodella
- Health Physics Department, Spedali Civili, Brescia, Italy
| | - Massimo Statuto
- Nuclear Medicine, University of Brescia and Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy
| | - Raffaele Giubbini
- Nuclear Medicine, University of Brescia and Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy
| | - Francesco Bertagna
- Nuclear Medicine, University of Brescia and Spedali Civili di Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy
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Primary CNS Lymphomas: Challenges in Diagnosis and Monitoring. BIOMED RESEARCH INTERNATIONAL 2018; 2018:3606970. [PMID: 30035121 PMCID: PMC6033255 DOI: 10.1155/2018/3606970] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 04/12/2018] [Accepted: 05/17/2018] [Indexed: 12/22/2022]
Abstract
Primary Central Nervous System Lymphoma (PCNSL) is a rare neoplasm that can involve brain, eye, leptomeninges, and rarely spinal cord. PCNSL lesions most typically enhance homogeneously on T1-weighted magnetic resonance imaging (MRI) and appear T2-hypointense, but high variability in MRI features is commonly encountered. Neurological symptoms and MRI findings may mimic high grade gliomas (HGGs), tumefactive demyelinating lesions (TDLs), or infectious and granulomatous diseases. Advanced MRI techniques (MR diffusion, spectroscopy, and perfusion) and metabolic imaging, such as Fluorodeoxyglucose Positron Emission Tomography (FDG-PET) or amino acid PET (usually employing methionine), may be useful in distinguishing these different entities and monitoring the disease course. Moreover, emerging data suggest a role for cerebrospinal fluid (CSF) markers in predicting prognosis and response to treatments. In this review, we will address the challenges in PCNSL diagnosis, assessment of response to treatments, and evaluation of potential neurotoxicity related to chemotherapy and radiotherapy.
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12
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Birsen R, Blanc E, Willems L, Burroni B, Legoff M, Le Ray E, Pilorge S, Salah S, Quentin A, Deau B, Franchi P, Vignon M, Mabille L, Nguyen C, Kirova Y, Varlet P, Edjlali M, Dezamis E, Hoang-Xuan K, Soussain C, Houillier C, Damotte D, Pallud J, Bouscary D, Tamburini J. Prognostic value of early 18F-FDG PET scanning evaluation in immunocompetent primary CNS lymphoma patients. Oncotarget 2018; 9:16822-16831. [PMID: 29682187 PMCID: PMC5908288 DOI: 10.18632/oncotarget.24706] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 02/25/2018] [Indexed: 12/18/2022] Open
Abstract
Primary central nervous system lymphoma (PCNSL) is a rare topographic variant of diffuse large B-cell lymphoma (DLBCL). While prognostic scales are useful in clinical trials, no dynamic prognostic marker is available in this disease. We report here the prognostic value of early metabolic response by 18F-FDG PET scanner (PET) in 25 newly diagnosed immunocompetent PCNSL patients. Induction treatment consisted of four cycles of Rituximab, Methotrexate and Temozolamide (RMT). Based on patient's general condition, consolidation by high-dose Etoposide and Aracytine was given to responding patients. Brain MRI and PET were performed at diagnosis, after two and four cycles of RMT, and after treatment completion. Two-year progression-free (PFS) and overall survival (OS) were 62% and 74%, respectively for the whole cohort. Best responses after RMT induction were 18 (72%) complete response (CR)/CR undetermined (CRu), 4 (16%) partial response, 1 (4%) progressive disease and 2 (8%) stable disease. Response evaluation was concordant between MRI and PET at the end of induction therapy. Nineteen patients (76%) had a negative PET2. Predictive positive and negative values of PET2 on end-of-treatment (ETR) CR were 66.67% and 94.74%, respectively. We observed a significant association between PET2 negativity and ETR (p = 0.001) and longer PFS (p = 0.02), while having no impact on OS (p = 0.32). Two years PFS was 72% and 33% for PET2- and PET2+ patients, respectively (p < 0.02). PET2 evaluation may help to early define a subgroup of CR PCNSL patients with a favorable outcome.
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Affiliation(s)
- Rudy Birsen
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Estelle Blanc
- Department of Nuclear Medicine, Marie Lannelongue Hospital, Le Plessis Robinson, France
| | - Lise Willems
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Barbara Burroni
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Pathology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Marielle Legoff
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Emmanuelle Le Ray
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Sylvain Pilorge
- Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Sawsen Salah
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Ophtalmology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | | | - Benedicte Deau
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Patricia Franchi
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Marguerite Vignon
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Laurence Mabille
- Department of Nuclear Medicine, Marie Lannelongue Hospital, Le Plessis Robinson, France
| | - Charles Nguyen
- Department of Nuclear Medicine, Marie Lannelongue Hospital, Le Plessis Robinson, France
| | - Yioula Kirova
- Radiotherapy Department, Curie Institute, Paris, France
| | - Pascale Varlet
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Department of Neuropathology, Sainte-Anne Hospital, Paris, France
| | - Myriam Edjlali
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Department of NeuroImaging, Sainte-Anne Hospital, Paris, France
| | - Edouard Dezamis
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Department of Neurosurgery, Sainte-Anne Hospital, Paris, France
| | - Khê Hoang-Xuan
- Department of Neurology 2-Mazarin, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Sorbonne Universités UPMC Universités Paris VI, IHU, ICM, Paris, France
| | - Carole Soussain
- Hematology Department, René Huguenin-Institut Curie Hospital, Saint Cloud, France
| | - Caroline Houillier
- Department of Neurology 2-Mazarin, Groupe Hospitalier Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Sorbonne Universités UPMC Universités Paris VI, IHU, ICM, Paris, France
| | - Diane Damotte
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Pathology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Johan Pallud
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Department of Neurosurgery, Sainte-Anne Hospital, Paris, France
| | - Didier Bouscary
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Jerome Tamburini
- Paris Descartes University, Sorbonne Paris Cité, Paris, France.,Hematology Department, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
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13
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Albano D, Bosio G, Bertoli M, Giubbini R, Bertagna F. 18F-FDG PET/CT in primary brain lymphoma. J Neurooncol 2017; 136:577-583. [PMID: 29147860 DOI: 10.1007/s11060-017-2686-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 11/12/2017] [Indexed: 11/28/2022]
Abstract
The actual role of 18F-FDG PET/CT in evaluating primary brain lymphoma is still an open issue. Brain lymphoma usually show elevated 18F-FDG uptake, often higher than other brain tumors or inflammatory processes, but the metabolic behavior of this lymphoma is not still understood. Our aim was to investigate the particular metabolic behavior of this lymphoma. Forty six patients (21 female, 25 male) with histologically-confirmed brain lymphoma who underwent 18F-FDG PET/CT from vertex to the mid-thigh for initial staging were retrospectively evaluated. The PET images were analyzed visually and semi-quantitatively by measuring the maximum standardized uptake value (SUVmax), lesion-to-liver SUVmax ratio, lesion-to-blood pool SUVmax ratio and the tumor to normal brain uptake ratio (T/N ratio) and compared with epidemiological (age, sex, HIV infection) and morphological (tumor size, MRI appearance) characteristics. Thirty-eight patients (83%) had positive 18F-FDG PET/CT (average SUVmax was 15.6 ± 9.2; lesion-to-liver SUVmax ratio 5.8 ± 2.8; lesion-to-blood pool SUVmax ratio 7.1 ± 3.8, T/N ratio 3.1 ± 1.7) at the corresponding brain lesion; the remaining 8 (17%) were not 18F-FDG avid. 18F-FDG avidity was significantly associated with morphological appearance and tumor size and not correlated with other features. 18F-FDG PET/CT detected extracranial disease in two cases (4%) with negative bone marrow biopsies and CT. In conclusion, brain lymphomas are 18F-FDG avid in 83% of cases showing high 18F-FDG uptake and 18F-FDG avidity is correlated with tumor size and morphological appearance of the lesion. PET/CT helped to recognize extracranial disease in two patients.
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Affiliation(s)
- Domenico Albano
- Nuclear Medicine, Spedali Civili Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy.
| | - Giovanni Bosio
- Nuclear Medicine, Spedali Civili Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy
| | - Mattia Bertoli
- Nuclear Medicine, Spedali Civili Brescia, P.le Spedali Civili, 1, 25123, Brescia, Italy
| | - Raffaele Giubbini
- Nuclear Medicine, University of Brescia and Spedali Civili Brescia, Brescia, Italy
| | - Francesco Bertagna
- Nuclear Medicine, University of Brescia and Spedali Civili Brescia, Brescia, Italy
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