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Karlsen W, Akily L, Mierzejewska M, Teodorczyk J, Bandura A, Zaucha R, Cytawa W. Is 18F-FDG-PET/CT an Optimal Imaging Modality for Detecting Immune-Related Adverse Events after Immune-Checkpoint Inhibitor Therapy? Pros and Cons. Cancers (Basel) 2024; 16:1990. [PMID: 38893111 PMCID: PMC11171385 DOI: 10.3390/cancers16111990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 05/15/2024] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open
Abstract
Immunotherapy with immune checkpoint inhibitors (ICIs) has revolutionized contemporary oncology, presenting efficacy in various solid tumors and lymphomas. However, ICIs may potentially overstimulate the immune system, leading to immune-related adverse events (irAEs). IrAEs may affect multiple organs, such as the colon, stomach, small intestine, kidneys, skin, lungs, joints, liver, lymph nodes, bone marrow, brain, heart, and endocrine glands (e.g., pancreas, thyroid, or adrenal glands), exhibiting autoimmune inflammation. 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) is commonly used in oncology for staging and assessment of therapy responses, but it may also serve as a tool for detecting irAEs. This review aims to present various patterns of metabolic activation associated with irAEs due to ICI treatment, identifiable through 18F-FDG PET/CT. It describes the advantages of early detection of irAEs, but also presents the challenges in differentiating them from tumor progression. It also delves into aspects of molecular response assessment within the context of pseudoprogression and hyperprogression, along with typical imaging findings related to these phenomena. Lastly, it summarizes the role of functional PET imaging in oncological immunotherapy, speculating on its future significance and limitations.
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Affiliation(s)
- William Karlsen
- Students’ Scientific Circle Department of Nuclear Medicine, Medical University of Gdańsk, 80-952 Gdańsk, Poland; (W.K.); (L.A.)
| | - Lin Akily
- Students’ Scientific Circle Department of Nuclear Medicine, Medical University of Gdańsk, 80-952 Gdańsk, Poland; (W.K.); (L.A.)
| | - Monika Mierzejewska
- Department of Nuclear Medicine, Medical University of Gdańsk, 80-952 Gdańsk, Poland; (M.M.); (J.T.)
| | - Jacek Teodorczyk
- Department of Nuclear Medicine, Medical University of Gdańsk, 80-952 Gdańsk, Poland; (M.M.); (J.T.)
| | - Artur Bandura
- Department of Clinical Oncology and Radiotherapy, Medical University of Gdańsk, 80-952 Gdańsk, Poland; (A.B.); (R.Z.)
| | - Renata Zaucha
- Department of Clinical Oncology and Radiotherapy, Medical University of Gdańsk, 80-952 Gdańsk, Poland; (A.B.); (R.Z.)
| | - Wojciech Cytawa
- Department of Nuclear Medicine, Medical University of Gdańsk, 80-952 Gdańsk, Poland; (M.M.); (J.T.)
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Ichikawa S, Goshima S. Key CT and MRI findings of drug-associated hepatobiliary and pancreatic disorders. Jpn J Radiol 2024; 42:235-245. [PMID: 37926781 PMCID: PMC10899361 DOI: 10.1007/s11604-023-01505-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023]
Abstract
Obtaining an imaging diagnosis of various hepatobiliary and pancreatic disorders caused by certain drugs can often be challenging. Familiarity with these conditions may improve diagnostic accuracy and patient management. This review aimed to describe the imaging findings of drug-associated hepatobiliary and pancreatic disorders and identify suggestions for obtaining a correct diagnosis. We focused on relatively common disorders or those that can present with characteristic imaging findings, such as drug-induced acute hepatitis, sinusoidal obstruction syndrome, focal nodular hyperplasia-like lesions, hepatocellular adenoma, pseudocirrhosis, chemotherapy-associated steatohepatitis, amiodarone deposition in the liver, secondary iron overload, drug-induced pancreatitis, pancreatic enlargement after epoprostenol therapy, ceftriaxone-associated gallbladder pseudolithiasis, immune-related adverse events, and methotrexate-associated lymphoproliferative disorders.
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Affiliation(s)
- Shintaro Ichikawa
- Department of Radiology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan.
| | - Satoshi Goshima
- Department of Radiology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
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Mallio CA, Bernetti C, Cea L, Buoso A, Stiffi M, Vertulli D, Greco F, Zobel BB. Adverse Effects of Immune-Checkpoint Inhibitors: A Comprehensive Imaging-Oriented Review. Curr Oncol 2023; 30:4700-4723. [PMID: 37232813 DOI: 10.3390/curroncol30050355] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/22/2023] [Accepted: 05/01/2023] [Indexed: 05/27/2023] Open
Abstract
Immune-checkpoint inhibitors (ICIs) are immunomodulatory monoclonal antibodies, which increase antitumor immunity of the host and facilitate T-cell-mediated actions against tumors. These medications have been used in recent years as a weapon against advanced stage malignancies, such as melanoma, renal cell carcinoma, lymphoma, small or non-small cell lung cancer, and colorectal cancer. Unfortunately, they are not free from possible adverse effects (immune-related adverse events-irAEs) that mainly affect skin, gastrointestinal, hepatic, and endocrine systems. Early diagnosis of irAEs is essential to correctly and rapidly manage patients, with ICIs suspension and therapies administration. Deep knowledge of the imaging and clinical patterns of irAEs is the key to promptly rule out other diagnoses. Here, we performed a review of the radiological signs and differential diagnosis, based on the organ involved. The aim of this review is to provide guidance to recognize the most significant radiological findings of the main irAEs, based on incidence, severity, and the role of imaging.
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Affiliation(s)
- Carlo Augusto Mallio
- Department of Medicine and Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy
- Department of Medicine and Surgery, Research Unit of Radiology, Università Campus Bio-Medico di Roma, 00128 Roma, Italy
| | - Caterina Bernetti
- Department of Medicine and Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy
- Department of Medicine and Surgery, Research Unit of Radiology, Università Campus Bio-Medico di Roma, 00128 Roma, Italy
| | - Laura Cea
- Department of Medicine and Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy
- Department of Medicine and Surgery, Research Unit of Radiology, Università Campus Bio-Medico di Roma, 00128 Roma, Italy
| | - Andrea Buoso
- Department of Medicine and Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy
- Department of Medicine and Surgery, Research Unit of Radiology, Università Campus Bio-Medico di Roma, 00128 Roma, Italy
| | - Massimo Stiffi
- Department of Medicine and Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy
- Department of Medicine and Surgery, Research Unit of Radiology, Università Campus Bio-Medico di Roma, 00128 Roma, Italy
| | - Daniele Vertulli
- Department of Medicine and Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy
- Department of Medicine and Surgery, Research Unit of Radiology, Università Campus Bio-Medico di Roma, 00128 Roma, Italy
| | - Federico Greco
- Unità Operativa Complessa Diagnostica per Immagini Territoriale Aziendale, Cittadella della Salute Azienda Sanitaria Locale di Lecce, Piazza Filippo Bottazzi, 73100 Lecce, Italy
| | - Bruno Beomonte Zobel
- Department of Medicine and Surgery, Fondazione Policlinico Universitario Campus Bio-Medico, 00128 Rome, Italy
- Department of Medicine and Surgery, Research Unit of Radiology, Università Campus Bio-Medico di Roma, 00128 Roma, Italy
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Khalatbari H, Shulkin BL, Parisi MT. Emerging Trends in Radionuclide Imaging of Infection and Inflammation in Pediatrics: Focus on FDG PET/CT and Immune Reactivity. Semin Nucl Med 2023; 53:18-36. [PMID: 36307254 DOI: 10.1053/j.semnuclmed.2022.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022]
Abstract
The most common indication for 18F-FDG PET/CT is tumor imaging, which may be performed for initial diagnosis, staging, therapeutic response monitoring, surveillance, or suspected recurrence. In the routine practice of pediatric nuclear medicine, most infectious, inflammatory, and autoimmune processes that are detected on 18F-FDG PET/CT imaging - except for imaging in fever or inflammation of unknown origin - are coincidental and not the main indication for image acquisition. However, interpreting these "coincidental" findings is of utmost importance to avoid erroneously attributing these findings to a neoplastic process. We review the recent literature on fever of unknown origin as well as inflammation of unknown origin in pediatrics and then focus on the 18F FDG PET/CT imaging findings seen in two specific entities with increased immune reactivity: hemophagocytic lymphohistiocytosis syndrome and the immune-related adverse events associated with checkpoint inhibitors. We will subsequently close with two sections highlighting related topics and relevant references for further reading.
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Affiliation(s)
- Hedieh Khalatbari
- Department of Radiology, Seattle Children's Hospital, Seattle, WA; Department of Radiology, University of Washington School of Medicine, Seattle, WA
| | - Barry L Shulkin
- Department of Diagnostic Radiology, St. Jude Children's Research Hospital, Memphis, TN.
| | - Marguerite T Parisi
- Department of Radiology, Seattle Children's Hospital, Seattle, WA; Department of Radiology, University of Washington School of Medicine, Seattle, WA
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Abstract
MRI is a widely available clinical tool for cancer diagnosis and treatment monitoring. MRI provides excellent soft tissue imaging, using a wide range of contrast mechanisms, and can non-invasively detect tissue metabolites. These approaches can be used to distinguish cancer from normal tissues, to stratify tumor aggressiveness, and to identify changes within both the tumor and its microenvironment in response to therapy. In this review, the role of MRI in immunotherapy monitoring will be discussed and how it could be utilized in the future to address some of the unique clinical questions that arise from immunotherapy. For example, MRI could play a role in identifying pseudoprogression, mixed response, T cell infiltration, cell tracking, and some of the characteristic immune-related adverse events associated with these agents. The factors to be considered when developing MRI imaging biomarkers for immunotherapy will be reviewed. Finally, the advantages and limitations of each approach will be discussed, as well as the challenges for future clinical translation into routine clinical care. Given the increasing use of immunotherapy in a wide range of cancers and the ability of MRI to detect the microstructural and functional changes associated with successful response to immunotherapy, the technique has great potential for more widespread and routine use in the future for these applications.
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Affiliation(s)
- Doreen Lau
- Centre for Immuno-Oncology, University of Oxford, Oxford, UK
| | - Pippa G Corrie
- Department of Oncology, Addenbrooke's Hospital, Cambridge, UK
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Sachpekidis C, Hassel JC, Dimitrakopoulou-Strauss A. Adverse effects under immune checkpoint inhibitors on [18F]FDG PET/CT imaging. THE QUARTERLY JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING : OFFICIAL PUBLICATION OF THE ITALIAN ASSOCIATION OF NUCLEAR MEDICINE (AIMN) [AND] THE INTERNATIONAL ASSOCIATION OF RADIOPHARMACOLOGY (IAR), [AND] SECTION OF THE SOCIETY OF... 2022; 66:245-254. [PMID: 35612369 DOI: 10.23736/s1824-4785.22.03453-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Despite their undisputed contribution to the management of various tumors and the prolongation of patient survival, immune checkpoint inhibitors (ICIs) exert their effect at the cost of toxicity. In the context of the activation of the host immune system triggered by ICIs, collateral, inflammatory side effects, commonly addressed as immune-related adverse events (irAEs) often occur. Early detection of irAEs can be critical for adequate decisions on patient management that may subsequently improve patient outcome. Moreover, the emergence of irAEs has been linked with the antitumor effect elicited by ICIs, thus, their identification may potentially provide prognostic information. Although the diagnosis of irAEs is mainly clinical, some adverse events may be asymptomatic and only diagnosed by imaging modalities. At the same time, radiological signs of irAEs are not necessarily associated with clinical symptoms, however, clinicians should be alerted to their presence. Among imaging modalities [18F]FDG PET/CT has shown satisfying efficiency in response assessment and monitoring of ICIs' treatment, especially in patients suffering from metastatic melanoma and lung cancer. In this context, [18F]FDG PET/CT may also be a valuable method for surveillance of irAEs during immunotherapy. This article aims to review the most common adverse events observed on [18F]FDG PET/CT under immunotherapy and summarize potential results linking PET signs of irAEs with response assessment to ICIs.
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Affiliation(s)
- Christos Sachpekidis
- Clinical Cooperation Unit Nuclear Medicine, German Cancer Research Center (DKFZ), Heidelberg, Germany -
| | - Jessica C Hassel
- Department of Dermatology, University Hospital of Heidelberg, Heidelberg, Germany
- National Center for Tumor Diseases (NCT), University Hospital of Heidelberg, Heidelberg, Germany
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Acute Interstitial Nephritis on PET-CT Imaging. Kidney Med 2022; 4:100552. [PMID: 36339667 PMCID: PMC9630788 DOI: 10.1016/j.xkme.2022.100552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Anderson MA, Khauli MA, Furtado F, Pourvaziri A, Catalano O. Immunotherapy-related renal toxicity causes reversible renal enlargement. Abdom Radiol (NY) 2022; 47:3301-3307. [PMID: 35776145 DOI: 10.1007/s00261-022-03594-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/11/2022] [Accepted: 06/14/2022] [Indexed: 01/18/2023]
Abstract
PURPOSE Prior case reports have noted an increase in renal size and perinephric stranding accompanying immunotherapy-related renal toxicity due to checkpoint-inhibitor therapy. The purpose of this investigation was to systematically evaluate if immunotherapy-related renal toxicity affects renal size and possible associated imaging findings. METHODS This retrospective multi-hospital study included 25 patients (13 men), mean age 67 years (range 46-83) who received immune-checkpoint inhibitors for cancer treatment, developed biopsy-proven immunotherapy-related nephritis, and who also had abdominal imaging before, during, and after nephritis was diagnosed. Long axis renal diameter, renal corticomedullary differentiation/enhancement and perinephric stranding were evaluated by two readers at three timepoints: (1) prior to checkpoint inhibitor therapy (baseline), (2) after biopsy-proven immunotherapy-related nephritis (post-treatment), and (3) following renal function recovery (follow-up). Intraclass correlation coefficient and Cohen's Kappa were calculated to quantify agreement. Logistic regression analysis was implemented to measure the association between each timepoint and imaging features. RESULTS Reader agreement on kidney measurements was excellent (ICC = 0.87). There was an increase in renal size between baseline and post-treatment (p = 0.001), followed by a decrease between post-treatment to follow-up (p < 0.001). Agreement was perfect for abnormal renal corticomedullary differentiation/enhancement (Kappa = 1, p < 0.001) and almost perfect for perinephric stranding (Kappa = 0.97, p < 0.001). Neither post-treatment nor follow-up imaging findings were significantly associated with these findings compared to the baseline (p = 0.2-0.6). CONCLUSION Immunotherapy-related renal toxicity was associated with an increase in renal size coincident with acute renal dysfunction.
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Affiliation(s)
- Mark A Anderson
- Division of Abdominal Imaging, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, White Building, Room 270, Boston, MA, 02114, USA.
| | - Mark A Khauli
- Division of Abdominal Imaging, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, White Building, Room 270, Boston, MA, 02114, USA
| | - Felipe Furtado
- Division of Abdominal Imaging, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, White Building, Room 270, Boston, MA, 02114, USA
| | - Ali Pourvaziri
- Division of Abdominal Imaging, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, White Building, Room 270, Boston, MA, 02114, USA
| | - Onofrio Catalano
- Division of Abdominal Imaging, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street, White Building, Room 270, Boston, MA, 02114, USA
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Hughes DJ, Subesinghe M, Taylor B, Bille A, Spicer J, Papa S, Goh V, Cook GJR. 18F FDG PET/CT and Novel Molecular Imaging for Directing Immunotherapy in Cancer. Radiology 2022; 304:246-264. [PMID: 35762888 DOI: 10.1148/radiol.212481] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Immunotherapy has transformed the treatment landscape of many cancers, with durable responses in disease previously associated with a poor prognosis. Patient selection remains a challenge, with predictive biomarkers an urgent unmet clinical need. Current predictive biomarkers, including programmed death-ligand 1 (PD-L1) (measured with immunohistochemistry), are imperfect. Promising biomarkers, including tumor mutation burden and tumor infiltrating lymphocyte density, fail to consistently predict response and have yet to translate to routine clinical practice. Heterogeneity of immune response within and between lesions presents a further challenge where fluorine 18 fluorodeoxyglucose PET/CT has a potential role in assessing response, stratifying treatment, and detecting and monitoring immune-related toxicities. Novel radiopharmaceuticals also present a unique opportunity to define the immune tumor microenvironment to better predict which patients may respond to therapy, for example by means of in vivo whole-body PD-L1 and CD8+ T cell expression imaging. In addition, longitudinal molecular imaging may help further define dynamic changes, particularly in cases of immunotherapy resistance, helping to direct a more personalized therapeutic approach. This review highlights current and emerging applications of molecular imaging to stratify, predict, and monitor molecular dynamics and treatment response in areas of clinical need.
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Affiliation(s)
- Daniel J Hughes
- From the Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, Westminster Bridge Road, 4th Floor, Lambeth Wing, London SE1 7EH, UK (D.J.H., M.S., V.G., G.J.R.C.); King's College London and Guy's and St Thomas' PET Centre, London, UK (D.J.H., M.S., G.J.R.C.); Comprehensive Cancer Centre (B.T., A.B.), Department of Thoracic Surgery (A.B.), and Department of Radiology (V.G.), Guy's and St Thomas' NHS Foundation Trust, London, UK; and School of Cancer and Pharmaceutical Sciences, King's College London, London, UK (J.S., S.P.)
| | - Manil Subesinghe
- From the Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, Westminster Bridge Road, 4th Floor, Lambeth Wing, London SE1 7EH, UK (D.J.H., M.S., V.G., G.J.R.C.); King's College London and Guy's and St Thomas' PET Centre, London, UK (D.J.H., M.S., G.J.R.C.); Comprehensive Cancer Centre (B.T., A.B.), Department of Thoracic Surgery (A.B.), and Department of Radiology (V.G.), Guy's and St Thomas' NHS Foundation Trust, London, UK; and School of Cancer and Pharmaceutical Sciences, King's College London, London, UK (J.S., S.P.)
| | - Benjamin Taylor
- From the Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, Westminster Bridge Road, 4th Floor, Lambeth Wing, London SE1 7EH, UK (D.J.H., M.S., V.G., G.J.R.C.); King's College London and Guy's and St Thomas' PET Centre, London, UK (D.J.H., M.S., G.J.R.C.); Comprehensive Cancer Centre (B.T., A.B.), Department of Thoracic Surgery (A.B.), and Department of Radiology (V.G.), Guy's and St Thomas' NHS Foundation Trust, London, UK; and School of Cancer and Pharmaceutical Sciences, King's College London, London, UK (J.S., S.P.)
| | - Andrea Bille
- From the Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, Westminster Bridge Road, 4th Floor, Lambeth Wing, London SE1 7EH, UK (D.J.H., M.S., V.G., G.J.R.C.); King's College London and Guy's and St Thomas' PET Centre, London, UK (D.J.H., M.S., G.J.R.C.); Comprehensive Cancer Centre (B.T., A.B.), Department of Thoracic Surgery (A.B.), and Department of Radiology (V.G.), Guy's and St Thomas' NHS Foundation Trust, London, UK; and School of Cancer and Pharmaceutical Sciences, King's College London, London, UK (J.S., S.P.)
| | - James Spicer
- From the Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, Westminster Bridge Road, 4th Floor, Lambeth Wing, London SE1 7EH, UK (D.J.H., M.S., V.G., G.J.R.C.); King's College London and Guy's and St Thomas' PET Centre, London, UK (D.J.H., M.S., G.J.R.C.); Comprehensive Cancer Centre (B.T., A.B.), Department of Thoracic Surgery (A.B.), and Department of Radiology (V.G.), Guy's and St Thomas' NHS Foundation Trust, London, UK; and School of Cancer and Pharmaceutical Sciences, King's College London, London, UK (J.S., S.P.)
| | - Sophie Papa
- From the Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, Westminster Bridge Road, 4th Floor, Lambeth Wing, London SE1 7EH, UK (D.J.H., M.S., V.G., G.J.R.C.); King's College London and Guy's and St Thomas' PET Centre, London, UK (D.J.H., M.S., G.J.R.C.); Comprehensive Cancer Centre (B.T., A.B.), Department of Thoracic Surgery (A.B.), and Department of Radiology (V.G.), Guy's and St Thomas' NHS Foundation Trust, London, UK; and School of Cancer and Pharmaceutical Sciences, King's College London, London, UK (J.S., S.P.)
| | - Vicky Goh
- From the Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, Westminster Bridge Road, 4th Floor, Lambeth Wing, London SE1 7EH, UK (D.J.H., M.S., V.G., G.J.R.C.); King's College London and Guy's and St Thomas' PET Centre, London, UK (D.J.H., M.S., G.J.R.C.); Comprehensive Cancer Centre (B.T., A.B.), Department of Thoracic Surgery (A.B.), and Department of Radiology (V.G.), Guy's and St Thomas' NHS Foundation Trust, London, UK; and School of Cancer and Pharmaceutical Sciences, King's College London, London, UK (J.S., S.P.)
| | - Gary J R Cook
- From the Department of Cancer Imaging, School of Biomedical Engineering and Imaging Sciences, King's College London, St Thomas' Hospital, Westminster Bridge Road, 4th Floor, Lambeth Wing, London SE1 7EH, UK (D.J.H., M.S., V.G., G.J.R.C.); King's College London and Guy's and St Thomas' PET Centre, London, UK (D.J.H., M.S., G.J.R.C.); Comprehensive Cancer Centre (B.T., A.B.), Department of Thoracic Surgery (A.B.), and Department of Radiology (V.G.), Guy's and St Thomas' NHS Foundation Trust, London, UK; and School of Cancer and Pharmaceutical Sciences, King's College London, London, UK (J.S., S.P.)
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Tatar G, Alçin G, Sengul Samanci N, Erol Fenercioglu Ö, Beyhan E, Cermik TF. Diagnostic impact of 18F-FDG PET/CT imaging on the detection of immune-related adverse events in patients treated with immunotherapy. Clin Transl Oncol 2022; 24:1903-1913. [PMID: 35594002 DOI: 10.1007/s12094-022-02840-9] [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: 02/09/2022] [Accepted: 04/11/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Immunotherapy is an effective treatment method for cancer cells with humoral and cellular immune mechanisms of action but triggers an inflammatory response and disrupts standard protective immune tolerance. Early detection of immune-related adverse events (irAEs) on PET/CT is crucial for patient management and subsequent therapy decisions. In this study, we aimed to evaluate the impact of 18F-FDG PET/CT on detecting of irAEs in patients receiving immunotherapy. PATIENTS AND METHODS Forty-six patients with advanced RCC (n: 32), malign melanoma (n: 9), lung cancer (n: 4), and laryngeal carcinoma (n: 1), who underwent 18F-FDG PET/CT imaging for response assessment after immunotherapy, were enrolled in the study. Newly detected findings associated with irAEs on posttreatment PET/CT images were compared with the pretreatment PET/CT, both qualitatively and semi-quantitatively. RESULTS Twenty-eight (61%) patients developed irAEs as observed on PET/CT. Enteritis/colitis was the most frequent irAE visualized on PET/CT with 13 patients (28.2%), followed by gastritis (17.3%), thyroiditis (13%), and myositis/arthritis (13%). Hepatitis (6.5%), pneumonitis (6.5%), sarcoid-like reaction (4.3%), and hypophysitis (4.3%) were observed to a lesser extent. The median time between the appearance of irAEs on PET/CT and the initiation of immunotherapy was 4.3 months. There were no significant differences in age, sex, and treatment response status of patients with and without irAEs. CONCLUSION 18F-FDG PET/CT plays a fundamental role in cancer immunotherapy with the potential to show significant irAEs both in the diagnosis and in follow-up of irAEs. IrAEs were present on PET/CT images of more than half of the patients who received immunotherapy in our study.
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Affiliation(s)
- Gamze Tatar
- Department of Nuclear Medicine, Istanbul Bagcılar Training and Research Hospital, University of Health Sciences, 34200, Bagcılar, Istanbul, Turkey.
| | - Göksel Alçin
- Department of Nuclear Medicine, Istanbul Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Nilay Sengul Samanci
- Division of Medical Oncology, Istanbul Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Özge Erol Fenercioglu
- Department of Nuclear Medicine, Istanbul Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Ediz Beyhan
- Department of Nuclear Medicine, Istanbul Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Tevfik Fikret Cermik
- Department of Nuclear Medicine, Istanbul Training and Research Hospital, University of Health Sciences, Istanbul, Turkey
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11
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Khauli MA, An TJ, Anderson MA. Imaging Findings in Immunotherapy-related Renal Toxicity. J Immunother 2022; 45:162-166. [PMID: 34670254 DOI: 10.1097/cji.0000000000000398] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/20/2021] [Indexed: 11/26/2022]
Abstract
Immunotherapy-related adverse events (irAEs) associated with immune-checkpoint inhibitors can affect nearly any organ system including commonly the luminal gastrointestinal tract, hepatobiliary system, lungs, endocrine glands, and skin, many of which have described imaging manifestations. In patients without clinically suspected irAEs, imaging findings may be the first indication of an abnormality that prompts further workup to facilitate early detection and initiation of appropriate treatment, such as therapy discontinuation or corticosteroid therapy. While some irAEs have well described imaging correlates, such as pneumonitis, hypophysitis, and colitis, others are not well described, such as nephritis. We report 2 cases of irAE nephritis associated with PD-1 inhibitor therapy and their imaging features.
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Affiliation(s)
| | | | - Mark A Anderson
- Division of Abdominal Imaging, Department of Radiology, Massachusetts General Hospital, Boston, MA
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12
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Immune-related cholangitis induced by immune checkpoint inhibitors: a systematic review of clinical features and management. Eur J Gastroenterol Hepatol 2021; 33:e858-e867. [PMID: 34482313 PMCID: PMC8734631 DOI: 10.1097/meg.0000000000002280] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND AIMS Immune checkpoint inhibitors (ICIs) improve the survival of patients with advanced tumors. However, immune-related adverse events limit the use of ICIs. Although liver toxicity has been concerned gradually, little is known about bile duct injury associated with ICIs. Hence, this review aims to describe clinicopathological features, imaging, and management of immune-mediated cholangitis (IMC) induced by ICIs. METHODS We retrieved the literature from the PubMed database for case reports and series of IMC induced by ICIs. IMC was then classified as small-ducts type, large-ducts type and mixed type. Biochemical parameters, pathological characteristics, imaging features, treatment and response were evaluated and compared among three patterns. RESULTS Fifty-three cases of IMC were enrolled. The median values of alkaline phosphatase and alanine transaminase of IMC were 1328 and 156 IU/L. The ALP level of the large-ducts type was higher than that of the small-ducts type (P = 0.021). The main pathological characteristics of small-ducts cholangitis were portal inflammation, bile duct injury and ductular reaction. The imaging features of large-duct cholangitis were bile duct dilatation, stenosis and bile duct wall thickening and irregularity. Forty-eight (90%) cases received immunosuppression therapy. Biliary enzymes reduced in 79% of cases receiving immunosuppression therapy, but only 8.5% of cases returned to normal. It took a long time for biliary enzymes to recover. CONCLUSIONS The clinicians should be aware of the possibility of IMC if the biliary enzymes increase significantly after the use of ICIs. The liver function can be improved partially by immunosuppressive therapy in the majority of IMC.
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Cappello G, Molea F, Campanella D, Galioto F, Russo F, Regge D. Gastrointestinal adverse events of immunotherapy. BJR Open 2021; 3:20210027. [PMID: 35707753 PMCID: PMC9185848 DOI: 10.1259/bjro.20210027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/31/2021] [Accepted: 10/04/2021] [Indexed: 11/05/2022] Open
Abstract
Cancer immunotherapy with immune-checkpoint inhibitors (ICIs) has emerged as an effective treatment for different types of cancer. ICIs are monoclonal antibodies that inhibit the signaling pathway that suppress antitumor T-cell activity. Patients benefit from increased overall and progression-free survival, but the enhancement of normal immunity can result in autoimmune manifestations, called immune-related adverse events (IRAEs), which may lead to a discontinuation of cancer therapy and to severe also life-threating events. IRAEs may affect any organs or system in the human body, being the gastrointestinal (GI) tract one of the most involved districts. Imaging plays an important role in recognizing GI IRAEs and radiologist should be familiar with the main spectrum of radiological appearance. Indeed, early detection of GI IRAEs is crucial for proper patient management and reduces morbidity and mortality. The purpose of this review is to present the most relevant imaging manifestation of GI IRAEs.
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Affiliation(s)
| | | | | | | | - Filippo Russo
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, TO, Italy
| | - Daniele Regge
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, TO, Italy
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