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Santo G, Cucè M, Restuccia A, Del Giudice T, Tassone P, Cicone F, Tagliaferri P, Cascini GL. Immune-related [ 18F]FDG PET findings in patients undergoing checkpoint inhibitors treatment: correlation with clinical adverse events and prognostic implications. Cancer Imaging 2024; 24:125. [PMID: 39289716 PMCID: PMC11409779 DOI: 10.1186/s40644-024-00774-9] [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: 08/19/2024] [Accepted: 09/09/2024] [Indexed: 09/19/2024] Open
Abstract
BACKGROUND Direct comparisons between [18F]FDG PET/CT findings and clinical occurrence of immune-related adverse events (irAEs) based on independent assessments of clinical and imaging features in patients receiving immune checkpoint inhibitors (ICIs) are missing. Our aim was to estimate sites, frequency, and timing of immune-related PET findings during ICIs treatment in patients with melanoma and NSCLC, and to assess their correlation with clinical irAEs. Prognostic implications of immune-related events were also investigated. METHODS Fifty-one patients with melanoma (47%) or NSCLC (53%) undergoing multiple PET examinations during anti-PD1/PDL1 treatment were retrospectively included. Clinical irAEs were graded according to CTCAE v.5.0. Abnormal PET findings suggestive of immune activation were described by two readers blinded to the clinical data. Progression-free survival (PFS) and overall survival (OS) were analyzed with the Kaplan-Meier method in patients stratified according to the presence of irAEs, immune-related PET findings or both. RESULTS Twenty-one patients showed clinical irAEs only (n = 6), immune-related PET findings only (n = 6), or both (n = 9). In patients whose imaging findings corresponded to clinical irAEs (n = 7), a positive correlation between SUVmax and the severity of the clinical event was observed (rs=0.763, p = 0.046). Clinical irAEs occurred more frequently in patients without macroscopic disease than in metastatic patients (55% vs. 23%, p = 0.039). Patients who developed clinical irAEs had a significantly longer PFS than patients who remained clinically asymptomatic, both in the overall cohort (p = 0.011) and in the subgroup of (n = 35) patients with metastatic disease (p = 0.019). The occurrence of immune-related PET findings significantly stratified PFS in the overall cohort (p = 0.040), and slightly missed statistical significance in patients with metastatic disease (p = 0.08). The best stratification of PFS was achieved when all patients who developed immune-related events, either clinically relevant or detected by PET only, were grouped together both in the overall cohort (p = 0.002) and in patients with metastatic disease (p = 0.004). In the whole sample, OS was longer in patients who developed any immune-related events (p = 0.032). CONCLUSION Patients with melanoma or NSCLC under ICI treatment can develop clinical irAEs, immune-related PET findings, or both. The occurrence of immune-related events has a prognostic impact. Combining clinical information with PET assessment improved outcome stratification.
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Affiliation(s)
- Giulia Santo
- Nuclear Medicine Unit, Department of Experimental and Clinical Medicine, "Mater Domini" University Hospital, "Magna Graecia" University, Catanzaro, Italy
| | - Maria Cucè
- Medical Oncology Unit, "Mater Domini" University Hospital, Catanzaro, Italy
| | - Antonino Restuccia
- Nuclear Medicine Unit, "Mater Domini" University Hospital, Catanzaro, Italy
| | | | - Pierfrancesco Tassone
- Translational Medical Oncology Unit, Department of Experimental and Clinical Medicine, "Mater Domini" University Hospital, "Magna Graecia" University, Catanzaro, Italy
| | - Francesco Cicone
- Nuclear Medicine Unit, Department of Experimental and Clinical Medicine, "Mater Domini" University Hospital, "Magna Graecia" University, Catanzaro, Italy.
- Nuclear Medicine Unit, "Mater Domini" University Hospital, Catanzaro, Italy.
| | - Pierosandro Tagliaferri
- Medical Oncology Unit, Department of Experimental and Clinical Medicine, "Mater Domini" University Hospital, "Magna Graecia" University, Catanzaro, Italy
| | - Giuseppe Lucio Cascini
- Nuclear Medicine Unit, Department of Experimental and Clinical Medicine, "Mater Domini" University Hospital, "Magna Graecia" University, Catanzaro, Italy
- Nuclear Medicine Unit, "Mater Domini" University Hospital, Catanzaro, Italy
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Lee SJ, Le KDR, Christie M, Dunne B, Herath D, McCusker M. Pseudoprogression following neoadjuvant chemoimmunotherapy for lung squamous cell carcinoma mimicking pulmonary metastatic disease on computed tomography: A case report and review of the literature. Radiol Case Rep 2024; 19:4029-4033. [PMID: 39091341 PMCID: PMC11292225 DOI: 10.1016/j.radcr.2024.06.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/04/2024] [Accepted: 06/15/2024] [Indexed: 08/04/2024] Open
Abstract
Pseudoprogression of malignancy in patients treated with systemic immunotherapy is a well- recognised phenomenon and has also been seen in patients treated with combined chemoimmunotherapy. Neoadjuvant chemoimmunotherapy prior to surgery is a relatively new treatment strategy for the management of many malignancies. We report the case of a patient who was suspected to have primary lung squamous cell carcinoma progression following neoadjuvant chemoimmunotherapy. Tissue histopathology from biopsies demonstrated granulomatous sarcoid-like inflammation rather than progression or metastatic disease. The patient proceeded to have successful surgical clearance of residual tumour. Significantly, failure to suspect granulomatous reactions and pseudoprogression has profound influence on the trajectory of patient care, such as, the potential for patients to miss out on curative surgery. In this case report and review of the literature, we evaluate the role of pseudoprogression and the need for radiologists to be aware of this phenomenon so that they do not mistakenly report new metastases and derail the treatment paradigm for patients with curable malignant conditions.
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Affiliation(s)
- Su Jin Lee
- Department of General Surgical Specialties, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Department of Radiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Khang Duy Ricky Le
- Department of General Surgical Specialties, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Geelong Clinical School, Deakin University, Geelong, Victoria, Australia
| | - Michael Christie
- Department of Pathology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
| | - Benjamin Dunne
- Department of Cardiothoracic Surgery, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Department of Cardiothoracic Surgery, The Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
| | - Dishan Herath
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Victoria 3010, Australia
| | - Mark McCusker
- Department of Radiology, The Royal Melbourne Hospital, Melbourne, Victoria, Australia
- Department of Radiology, University of Melbourne, Victoria, Australia
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Chua DYS, Ong CSH, Goh BYS, Tan NJH. Renal mass-forming granulomatous inflammation associated with immune checkpoint inhibitor therapy. Pathology 2024; 56:421-423. [PMID: 37716817 DOI: 10.1016/j.pathol.2023.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 06/30/2023] [Indexed: 09/18/2023]
Affiliation(s)
- Darren Yee Shuen Chua
- Department of Pathology, National University Hospital, National University Health System, Singapore
| | - Chloe Shu Hui Ong
- Department of Urology, National University Hospital, National University Health System, Singapore
| | - Benjamin Yen Seow Goh
- Department of Urology, National University Hospital, National University Health System, Singapore
| | - Nicholas Jin Hong Tan
- Department of Pathology, National University Hospital, National University Health System, Singapore.
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Yoshikawa S, Taniguchi K, Sawamura H, Ikeda Y, Asai T, Tsuji A, Matsuda S. Potential tactics with certain gut microbiota for the treatment of unresectable hepatocellular carcinoma. EXPLORATION OF TARGETED ANTI-TUMOR THERAPY 2023; 4:556-568. [PMID: 37720344 PMCID: PMC10501893 DOI: 10.37349/etat.2023.00152] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/24/2023] [Indexed: 09/19/2023] Open
Abstract
Hepatocellular carcinoma (HCC) constitutes an extremely malignant form of primary liver cancer. Intricate connections linking to the immune system might be associated with the pathogenesis of HCC. Meanwhile, immunotherapy with immune checkpoint inhibitors has been established to be a favorable therapeutic possibility for advanced HCC. Although curative opportunities for advanced HCC are restricted, the immune checkpoint immunotherapy has developed as the main choice for treating HCC. However, patients with metabolic-associated fatty liver disease (MAFLD)-linked HCC might be less likely to benefit from the immunotherapy alone. The limitation of the effect of the immunotherapy might be owing to the impaired T cell activation in MAFLD patients, which could be well explained by a dysfunctional gut-liver axis. Gut microbiota and their metabolites including several bile acids could contribute to modulating the responses of the immune checkpoint immunotherapy. Roles of gut microbiota in the development of cancers have expected great interest in the latest studies. Here, an interplay between the gut and liver has been presented, which might suggest to affect the efficacy of immune checkpoint immunotherapy against HCC.
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Affiliation(s)
- Sayuri Yoshikawa
- Department of Food Science and Nutrition, Nara Women’s University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Kurumi Taniguchi
- Department of Food Science and Nutrition, Nara Women’s University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Haruka Sawamura
- Department of Food Science and Nutrition, Nara Women’s University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Yuka Ikeda
- Department of Food Science and Nutrition, Nara Women’s University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Tomoko Asai
- Department of Food Science and Nutrition, Nara Women’s University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Ai Tsuji
- Department of Food Science and Nutrition, Nara Women’s University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
| | - Satoru Matsuda
- Department of Food Science and Nutrition, Nara Women’s University, Kita-Uoya Nishimachi, Nara 630-8506, Japan
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Li H, Mu F, Zou B, Wang L. Pulmonary sarcoidosis-like reactions induced by sintilimab in esophageal cancer: A case report. Medicine (Baltimore) 2023; 102:e34432. [PMID: 37543824 PMCID: PMC10403023 DOI: 10.1097/md.0000000000034432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/07/2023] Open
Abstract
RATIONALE Esophageal cancer is one of the deadliest cancers in the world, with high incidence and mortality rates ranking among the top ten in China. The efficacy of conventional treatments is limited and often accompanied by severe adverse reactions, which results in unsatisfactory outcomes. The mechanism of immune checkpoint inhibitors (ICIs) is to activate cytotoxic T cells to kill tumor cells expressing tumor antigens. The application of ICIs has profoundly changed the mode of cancer treatment. However, the use of ICIs also induces a series of adverse reactions similar to autoimmune reactions, called immune-related adverse events (irAEs). Some ICIs can cause manifestations similar to those in the development of sarcoidosis, which are called sarcoidosis-like reactions or granulomatosis. PATIENT CONCERNS We report a 50-year-old Chinese male patient. DIAGNOSES The patient had been diagnosed with advanced esophageal squamous cell carcinoma , and was confirmed to have pulmonary sarcoidosis-like reactions associated with sintilimab, a human programmed cell death protein 1 (PD-1) inhibitor. INTERVENTIONS The patient was administered corticosteroid treatment. OUTCOMES After receiving steroid treatment, the patient's systemic and pulmonary symptoms improved rapidly. To our knowledge, this is the first report of pulmonary sarcoidosis-like reaction in a patient with esophageal squamous cell carcinoma. The patient then continued to receive 1 year of follow-up antitumor treatment after the appearance of lung pulmonary sarcoidosis-like reactions. The prognosis was good and the patient's condition is currently stable. LESSONS The diagnosis of ICI-induced sarcoidosis often requires comprehensive evaluation through clinical, pathological, and radiological assessment. A subset of patients with sarcoidosis-like reactions may not require treatment unless there is organ dysfunction or severe clinical symptoms, and these reactions generally respond well to treatment. The occurrence of sarcoidosis-like reactions after immunotherapy is positively correlated with the long-term prognosis of cancer patients. However, this hypothesis requires larger prospective studies for validation.
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Affiliation(s)
- Haoqian Li
- Department of Oncology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
| | - Fengchun Mu
- Department of Oncology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
| | - Bing Zou
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
| | - Linlin Wang
- Department of Oncology, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
- Department of Radiation Oncology, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, People's Republic of China
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Mazumder A, Mehrmal S, Chaudhry S. Immunotherapy-induced exclusively cutaneous sarcoid-like reaction. BMJ Case Rep 2023; 16:e252766. [PMID: 37463781 PMCID: PMC10357716 DOI: 10.1136/bcr-2022-252766] [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] [Indexed: 07/20/2023] Open
Abstract
Sarcoid-like reactions (SLRs) are rare, granulomatous inflammatory reactions to immune checkpoint inhibitors (ICIs) that can involve any organ but frequently affect the lungs, mediastinal lymph nodes and skin. We present a rare case of an exclusively cutaneous SLR due to pembrolizumab that clinically resembled dermatomyositis. A literature review yielded only 12 previously reported cases of ICI-induced cutaneous SLR without any systemic involvement. Our case highlights the diversity of presentations of cutaneous SLR and emphasises the importance of histological evaluation of new cutaneous eruptions.
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Affiliation(s)
- Anika Mazumder
- Saint Louis University School of Medicine, Saint Louis, Missouri, USA
| | - Sino Mehrmal
- Department of Dermatology, Saint Louis University School of Medicine, Saint Louis, Missouri, USA
| | - Sofia Chaudhry
- Department of Dermatology, Saint Louis University School of Medicine, Saint Louis, Missouri, USA
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Soto F, Torre-Sada LF, Mott FE, Kim ST, Nurieva R, Shannon VR, Faiz SA, Casal RF, Altan M, Lin J, Sheshadri A. Sarcoidosis and Airway Disease After Immune Checkpoint Inhibitor Therapy: Case Study and Review of the Literature. JOURNAL OF IMMUNOTHERAPY AND PRECISION ONCOLOGY 2023; 6:111-116. [PMID: 37214206 PMCID: PMC10195014 DOI: 10.36401/jipo-22-30] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 01/11/2023] [Accepted: 01/20/2023] [Indexed: 05/24/2023]
Abstract
Pulmonary toxicity from immune checkpoint inhibitor therapy is typically a severe and potentially fatal complication, but these observations are driven by the most common toxicity, pneumonitis. Rarer pulmonary immune related adverse events, like airway disease and sarcoidosis, may have a more benign course. In this case report, we present a patient in whom therapy with the PD-1 inhibitor pembrolizumab resulted in severe eosinophilic asthma and sarcoidosis. This is the first case showing that anti-IL-5 inhibition may be safe in patients who develop eosinophilic asthma after ICI therapy. We further show that sarcoidosis does not necessarily require treatment cessation. This case highlights relevant nuances when clinicians face pulmonary toxicities other than pneumonitis.
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Affiliation(s)
- Felipe Soto
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- School of Medicine, Tecnologico de Monterrey, Monterrey, Mexico
| | - Luis F. Torre-Sada
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- School of Medicine, Tecnologico de Monterrey, Monterrey, Mexico
| | - Frank E. Mott
- Department of Thoracic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sang T. Kim
- Department of General Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Roza Nurieva
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Vickie R. Shannon
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Saadia A. Faiz
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Roberto F. Casal
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mehmet Altan
- Department of Thoracic Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Julie Lin
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ajay Sheshadri
- Department of Pulmonary Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Eljilany I, Noor A, Paravathaneni M, Yassine I, Lee SJ, Othus M, Moon J, Kirkwood JM, Sondak VK, Ribas A, Grossmann KF, Tarhini AA. Granulomatous and Sarcoid-like Immune-Related Adverse Events following CTLA4 and PD1 Blockade Adjuvant Therapy of Melanoma: A Combined Analysis of ECOG-ACRIN E1609 and SWOG S1404 Phase III Trials and a Literature Review. Cancers (Basel) 2023; 15:2561. [PMID: 37174027 PMCID: PMC10177189 DOI: 10.3390/cancers15092561] [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: 03/13/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
BACKGROUND Treatment with immune checkpoint inhibitors (ICIs) has been linked to granulomatous and sarcoid-like lesions (GSLs) affecting different organs. This study sought to evaluate GSL incidence in patients with high-risk melanoma treated with cytotoxic T-lymphocyte antigen 4 (CTLA4) or programmed cell death 1 (PD1) blockade adjuvant therapy in two clinical trials: ECOG-ACRIN E1609 and SWOG S1404. Descriptions and GSL severity ratings were recorded. METHODS Data were collected from ECOG-ACRIN E1609 and SWOG S1404. Descriptive statistics along with GSL severity grades were reported. Additionally, a literature review for such cases was summarized. RESULTS A total of 11 GSL cases were reported among 2878 patients treated with either ICI or with High-Dose Interferon Alfa-2b (HDI) in ECOG-ACRIN E1609 and SWOG S1404 trials. Cases were numerically more commonly reported with ipi10, followed by pembrolizumab, ipi3, and HDI, respectively. Most of the cases were grade III. Further, organs involved included lung, mediastinal lymph nodes, skin and subcutaneous tissue, and eye. Furthermore, a summary of 62 reports in the literature was described. CONCLUSIONS GSLs following anti-CTLA4 and anti-PD1 antibody therapy in patients with melanoma were reported unusually. Reported cases ranged in grade from I to III and appeared manageable. Careful attention to these events and their reporting will be essential to better guide practice and management guidelines.
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Affiliation(s)
- Islam Eljilany
- Houston Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Arish Noor
- Houston Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | | | - Ibrahim Yassine
- Houston Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
- Department of Psychology, College of Life Sciences, University of California, Los Angeles, CA 90095, USA
| | - Sandra J. Lee
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA 02215, USA
| | - Megan Othus
- Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - James Moon
- Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - John M. Kirkwood
- UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Vernon K. Sondak
- Houston Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Antoni Ribas
- Department of Psychology, College of Life Sciences, University of California, Los Angeles, CA 90095, USA
| | | | - Ahmad A. Tarhini
- Houston Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
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Minami S, Yasuoka H, Shoshihara N, Ishida D, Sakamaki Y. Sarcoid-Like Granulomatosis of the Lung Related to Durvalumab After Chemoradiation for Pulmonary Squamous Cell Carcinoma. J Med Cases 2023; 14:19-24. [PMID: 36755995 PMCID: PMC9881487 DOI: 10.14740/jmc4038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 12/27/2022] [Indexed: 01/20/2023] Open
Abstract
Sarcoid-like granulomatosis is a unique immune-related adverse event (irAE) in cancer patients treated with immune checkpoint inhibitors (ICIs). This irAE is infrequent, reported to range from 2% to 22.2% of melanoma treated with ICI. In a case of granulomatosis localized in the lung, it is difficult to differentiate granulomatosis from cancer progression or metastases. Herein, we report a case of ICI-induced sarcoid-like granulomatosis of the lung, which was confusable with localized recurrence of the primary lung cancer. A 56-year-old woman with c-stage IIIA of pulmonary squamous cell carcinoma in the right lower lobe received chemo-radiotherapy with two courses of cisplatin and vinorelbine and concurrent thoracic irradiation, followed by 1-year durvalumab consolidation therapy. The tumor in the right S6 grew and presented abnormal uptake by fluorodeoxyglucose positron emission tomography (FDG-PET), 1.5 years after durvalumab. Neither computed tomography (CT) nor FDG-PET found mediastinal and distant metastases. She underwent right lower lobe lobectomy. Histopathologically, the tumor and sampled lymph nodes contained no residue of carcinoma cells but presented diffuse epithelioid granuloma with infiltration of inflammatory cells, partial necrotic lesions and many multinucleated giant cells. In immunohistochemical stains, CD3+ and CD8+ T cells predominantly infiltrated, while there were few CD4+ T cells and a small number of CD20+ B cells. We followed her without steroid and other immunosuppressant drug. We should pay attention to the development of sarcoid-like granulomatosis as a rare irAE, which is difficult to be differentiated from cancer progression.
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Affiliation(s)
- Seigo Minami
- Departments of Respiratory Medicine, Osaka Police Hospital, Osaka, Japan
| | - Hironao Yasuoka
- Departments of Pathology, Osaka Police Hospital, Osaka, Japan
| | - Nao Shoshihara
- Departments of Respiratory Medicine, Osaka Police Hospital, Osaka, Japan
| | - Daisuke Ishida
- Departments of Respiratory Surgery, Osaka Police Hospital, Osaka, Japan
| | - Yasushi Sakamaki
- Departments of Respiratory Surgery, Osaka Police Hospital, Osaka, Japan
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