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Eder P, Verstock B, Culver E, Dragoni G, Kredel LI, Wypych J, de Paredes AGG, Kaniewska M, Leibovitzh H, Lobaton T, Truyens M, Oracz G, Giuseppe Ribaldone D, Starzyńska T, Badaoui A, Rahier JF, Bezzio C, Bossuyt P, Falloon K, Pugliese D, Frakes Vozzo C, Jess T, Larsen L, Olesen SS, Pal P, Chaparro M, Dror D, Ellul P, Gromny I, Janiak M, Maciejewska K, Peleg N, Bar-Gil Shitrit A, Szwed Ł, Talar-Wojnarowska R, Snir Y, Weisshof R, Zittan E, Miechowicz I, Goren I. Autoimmune Pancreatitis in Patients with Inflammatory Bowel Disease: A Real-World Multicentre Collaborative ECCO CONFER Study. J Crohns Colitis 2023; 17:1791-1799. [PMID: 37283545 PMCID: PMC10673810 DOI: 10.1093/ecco-jcc/jjad097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 04/05/2023] [Accepted: 06/06/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Autoimmune pancreatitis [AIP] is rarely associated with inflammatory bowel disease [IBD]. The long-term outcomes of AIP and IBD in patients with coexisting AIP-IBD and predictors of complicated AIP course have rarely been reported. METHODS An ECCO COllaborative Network For Exceptionally Rare case reports project [ECCO-CONFER] collected cases of AIP diagnosed in patients with IBD. Complicated AIP was defined as a composite of endocrine and/or exocrine pancreatic insufficiency, and/or pancreatic cancer. We explored factors associated with complicated AIP in IBD. RESULTS We included 96 patients [53% males, 79% ulcerative colitis, 72% type 2 AIP, age at AIP diagnosis 35 ± 16 years]. The majority of Crohn's disease [CD] cases [78%] had colonic/ileocolonic involvement. In 59%, IBD preceded AIP diagnosis, whereas 18% were diagnosed simultaneously. Advanced therapy to control IBD was used in 61% and 17% underwent IBD-related surgery. In total, 82% of patients were treated with steroids for AIP, the majority of whom [91%] responded to a single course of treatment. During a mean follow-up of 7 years, AIP complications occurred in 25/96 [26%] individuals. In a multivariate model, older age at AIP diagnosis was associated with a complicated AIP course (odds ratio [OR] = 1.05, p = 0.008), whereas family history of IBD [OR = 0.1, p = 0.03], and CD diagnosis [OR = 0.2, p = 0.04] decreased the risk of AIP complications. No IBD- or AIP-related deaths occurred. CONCLUSIONS In this large international cohort of patients with concomitant AIP-IBD, most patients have type 2 AIP and colonic IBD. AIP course is relatively benign and long-term outcomes are favourable, but one-quarter develop pancreatic complications. Age, familial history of IBD, and CD may predict uncomplicated AIP course.
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Affiliation(s)
- Piotr Eder
- Department of Gastroenterology, Dietetics, and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - Bram Verstock
- Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium; Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Emma Culver
- Translational Gastroenterology Unit, John Radcliffe Hospital and Oxford, NIHR BRC, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Gabriele Dragoni
- Department of Gastroenterology, Careggi University Hospital, Florence, Italy
| | - Lea Isabell Kredel
- Division of Gastroenterology, Infectiology and Rheumatology, Medical Department, Charité-Universitätsmedizin, Berlin, Germany
| | - Joanna Wypych
- Department of Gastroenterology, Surgery and Nutrition, Copernicus Hospital, Gdansk, Poland
| | - Ana Garcia Garcia de Paredes
- Gastroenterology and Hepatology Department. Hospital Universitario Ramon y Cajal. Universidad de Alcala, IRYCIS, Madrid, Spain
| | - Magdalena Kaniewska
- Department of Gastroenterology with IBD Subdivision, National Medical Institute of Ministry of Inferior and Administration, Warsaw, Poland
| | - Haim Leibovitzh
- Zane Cohen Centre for Digestive Diseases, Division of Gastroenterology & Hepatology, Temerty Faculty of Medicine, Mount Sinai Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Triana Lobaton
- Department of Internal Medicine and Pediatrics, Department of Gastroenterology, Ghent University, Ghent, Belgium
| | - Marie Truyens
- Department of Internal Medicine and Pediatrics, Department of Gastroenterology, Ghent University, Ghent, Belgium
| | - Grzegorz Oracz
- Department of Gastroenterology, Hepatology, Feeding Disorder and Pediatrics, The Children’s Memorial Health Institute, Warsaw, Poland; Pediatric Gastroenterology Faculty, Centre of Postgraduate Medical Education, Warsaw, Poland
| | | | - Teresa Starzyńska
- Department of Gastroenterology, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Abdenor Badaoui
- Department of Gastroenterology, Université Catholique de Louvain, Yvoir, Belgium
| | - Jean-Francois Rahier
- Department of Gastroenterology, Université Catholique de Louvain, Yvoir, Belgium
| | - Cristina Bezzio
- Gastroenterology Unit, Rho Hospital, Rho (MI), ASST Rhodense, Garbagnate Milanese, Italy
| | - Peter Bossuyt
- Imelda GI Clinical Research Center, Imelda General Hospital, Bonheiden, Belgium
| | - Katherine Falloon
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Daniela Pugliese
- CEMAD, IBD UNIT, Unità Operativa Complessa di Medicina Interna e Gastroenterologia, Dipartimento di Scienze Mediche e Chirurgiche, Fondazione Policlinico Universitario ‘A. Gemelli’ IRCCS, Rome, Italy
| | - Catherine Frakes Vozzo
- Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Tine Jess
- Center for Molecular Prediction of Inflammatory Bowel Disease, Department of Clinical Medicine, Aalborg University, Copenhagen, Denmark
| | - Lone Larsen
- Department of Gastroenterology and Hepatology, Aalborg University Hospital, Center for Molecular Prediction of Inflammatory Bowel Disease – PREDICT, Department of Clinical Medicine, The Faculty of Medicine, Aalborg University, Aalborg, Denmark
| | - Søren Schou Olesen
- Centre for Pancreatic Diseases and Mech-Sense, Department of Gastroenterology and Hepatology, Aalborg University Hospital, Aalborg, Denmark; Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Partha Pal
- Department of Gastroenterology, Asian Institute of Gastroenterology, Hyderabad, India
| | - María Chaparro
- Department of Gastroenterology, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Dikla Dror
- Department of Gastroenterology, Galilee Medical Center, Nahariyya, Israel
| | - Pierre Ellul
- Division of Gastroenterology, Mater dei Hospital, Malta
| | - Iga Gromny
- Division of Dietetics, Department of Gastroenterology and Hepatology, Wroclaw Medical University, Wroclaw, Poland
| | - Maria Janiak
- Department of Gastroenterology and Hepatology, Medical University of Gdańsk, Gdańsk, Poland
| | - Katarzyna Maciejewska
- Department of Gastroenterology with IBD Subdivision, National Medical Institute of Ministry of Inferior and Administration, Warsaw, Poland
| | - Noam Peleg
- The Division of Gastroenterology, Rabin Medical Center, Petach Tikva, Israel, affiliated with Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ariella Bar-Gil Shitrit
- IBD MOM Unit, Digestive Diseases Institute, The Hebrew University of Jerusalem, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Łukasz Szwed
- Private Gastroenterology Practice, Nowy Dwór Mazowiecki, Poland
| | | | - Yifat Snir
- Gastroenterology Department, Clalit Health Services, Tel Aviv District, affiliated with Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Roni Weisshof
- Gastroenterology Institute at Rambam Health Care Campus in Haifa, Haifa, Israel
| | - Eran Zittan
- Ellen and Pinchas Mamber Institute of Gastroenterology and Liver Diseases, IBD Unit, Emek Medical Center, Afula, Israel
| | - Izabela Miechowicz
- Department of Computer Science and Statistics, Poznan University of Medical Sciences, Poznan, Poland
| | - Idan Goren
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
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Maeda N, Tanoue S, Fujino Y, Hinokuchi M, Arima S, Sasaki F, Hashimoto S, Kanmura S, Higashi M, Ido A. Focal Type 2 Autoimmune Pancreatitis Mimicking Pancreatic Cancer: Treatment with Neoadjuvant Chemotherapy and Surgery. Intern Med 2023; 62:2499-2505. [PMID: 36543207 PMCID: PMC10518552 DOI: 10.2169/internalmedicine.0224-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 11/06/2022] [Indexed: 12/24/2022] Open
Abstract
A 51-year-old man was referred to our hospital for the further examination of main pancreatic duct interruption. Imaging findings showed a 25-mm-diameter mass lesion located in the pancreatic head. Endoscopic ultrasonography (EUS)-guided fine-needle aspiration (FNA) was performed on the mass. Cytology suggested adenocarcinoma, but the histological diagnosis was not confirmed. We made a comprehensive diagnosis of resectable pancreatic cancer. The mass shrank after preoperative adjuvant chemotherapy, and the patient underwent surgery. The final pathological diagnosis was type 2 autoimmune pancreatitis (AIP). Two years after surgery, AIP had not recurred in the remaining pancreas.
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Affiliation(s)
- Nobuhisa Maeda
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Shiroh Tanoue
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Yusuke Fujino
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Makoto Hinokuchi
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Shiho Arima
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Fumisato Sasaki
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Shinichi Hashimoto
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Shuji Kanmura
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Michiyo Higashi
- Department of Pathology, Kagoshima University Hospital, Japan
| | - Akio Ido
- Digestive and Lifestyle Diseases, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
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Tornel-Avelar AI, Velarde Ruiz-Velasco JA, Pelaez-Luna M. Pancreatic cancer, autoimmune or chronic pancreatitis, beyond tissue diagnosis: Collateral imaging and clinical characteristics may differentiate them. World J Gastrointest Oncol 2023; 15:925-942. [PMID: 37389107 PMCID: PMC10302998 DOI: 10.4251/wjgo.v15.i6.925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/21/2023] [Accepted: 04/28/2023] [Indexed: 06/14/2023] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal malignancies and is developing into the 2nd leading cause of cancer-related death. Often, the clinical and radiological presentation of PDAC may be mirrored by other inflammatory pancreatic masses, such as autoimmune pancreatitis (AIP) and mass-forming chronic pancreatitis (MFCP), making its diagnosis challenging. Differentiating AIP and MFCP from PDAC is vital due to significant therapeutic and prognostic implications. Current diagnostic criteria and tools allow the precise differentiation of benign from malignant masses; however, the diagnostic accuracy is imperfect. Major pancreatic resections have been performed in AIP cases under initial suspicion of PDAC after a diagnostic approach failed to provide an accurate diagnosis. It is not unusual that after a thorough diagnostic evaluation, the clinician is confronted with a pancreatic mass with uncertain diagnosis. In those cases, a re-evaluation must be entertained, preferably by an experienced multispecialty team including radiologists, pathologists, gastroenterologists, and surgeons, looking for disease-specific clinical, imaging, and histological hallmarks or collateral evidence that could favor a specific diagnosis. Our aim is to describe current diagnostic limitations that hinder our ability to reach an accurate diagnosis among AIP, PDAC, and MFCP and to highlight those disease-specific clinical, radiological, serological, and histological characteristics that could support the presence of any of these three disorders when facing a pancreatic mass with uncertain diagnosis after an initial diagnostic approach has been unsuccessful.
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Affiliation(s)
- Ana I Tornel-Avelar
- Department of Gastroenterology, Hospital Civil of Guadalajara “Fray Antonio Alcalde”, Guadalajara 44340, Jalisco, Mexico
| | | | - Mario Pelaez-Luna
- Research Division School of Medicine/Department of Gastroenterology, Universidad Nacional Autonoma de México/National Institute of Medical Sciences and Nutrition “Salvador Zubiran”, Tlalpan 14000, Mexico City, Mexico
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Lee SC, Yang CH, Chang CT, Yu KH. Diagnostic Utility of Serum IgG4 in Autoimmune Pancreatitis: An Updated Comprehensive Systematic Review and Meta-analysis. J Clin Gastroenterol 2022; 56:810-817. [PMID: 34516462 DOI: 10.1097/mcg.0000000000001612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/30/2021] [Indexed: 01/10/2023]
Abstract
OBJECTIVES Despite many studies suggesting an association between serum immunoglobulin G4 (sIgG4) and autoimmune pancreatitis (AIP), the evidence of utility in differentiation between AIP and pancreatic cancer (PC) remain uncertain. METHODS The analysis based on published studies. Data were pooled by means of a random-effects model, and sensitivity, specificity, diagnostic odds ratios (DOR), areas under summary receiver operating characteristic curves were calculated. RESULTS In the included thirteen studies, sIgG4 were measured in 594 patients with AIP and 958 patients with PC. The pooled sensitivity, specificity, DOR, and area under the curve were 0.72 [95% confidence interval (CI): 0.68-0.75], 0.93 (95% CI: 0.92-0.95), 51.37 (95% CI: 23.20-113.74), and 0.91 (95% CI: 0.87-0.95). Subgroup analyses of the DORs for region and year: Asia, (112.10; 95% CI: 27.72-453.32), non-Asia (26.01; 95% CI: 12.38-54.65), and year before 2011 (107.61; 95% CI: 39.30-294.68), year after 2011 (26.96; 95% CI: 9.78-74.32). Overall, sIgG4 was associated with AIP, the result revealed a moderate sensitivity 0.72 and high specificity 0.93. In the meta-analysis, the pooled DOR of sIgG4 levels of 2-fold upper limit 50.44 was similar with the DOR 51.37 when 1-fold cut-off value, but the summary receiver operating characteristic was 0.755 and 0.91. The higher specificity (from 93% to 98%) derived from the cut-off value (from 130-140 to 260-280 mg/dL) for sIgG4 occurred at a significant reduction in sensitivity (from 72% to 43%). CONCLUSIONS The study revealed sIgG4 is a good marker of AIP. Screening of sIgG4 may help clinicians differentiate between AIP and PC, and the best cut-off value should be 140 rather than 280 mg/dL.
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Affiliation(s)
- Shih-Ching Lee
- Division of Rheumatology, Allergy and Immunology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Tao-Yuan, Taiwan
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Masood M. Autoimmune pancreatitis: What we know so far. JGH Open 2021; 6:3-10. [PMID: 35071782 PMCID: PMC8762623 DOI: 10.1002/jgh3.12688] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/12/2021] [Accepted: 11/20/2021] [Indexed: 12/19/2022]
Abstract
Autoimmune pancreatitis (AIP) is a rare, often‐missed disease that involves inflammation of the pancreas and strictures of the pancreatic duct. Its prevalence and incidence in the United States remain scarce. The disease has a varied presentation and often mimics pancreatic malignancy, which can make the diagnosis challenging. Most patients have an excellent response to corticosteroid therapy. Immunomodulators may be used in some cases. Rituximab is an effective, emerging treatment in steroid‐refractory cases. This study aims to review the two distinct types of AIP and provide a detailed analysis of the diagnostic approach and treatment modalities.
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Affiliation(s)
- Muaaz Masood
- Department of Internal Medicine Medical College of Georgia at Augusta University Augusta Georgia USA
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Effective apparent diffusion coefficient parameters for differentiation between mass-forming autoimmune pancreatitis and pancreatic ductal adenocarcinoma. Abdom Radiol (NY) 2021; 46:1640-1647. [PMID: 33037891 DOI: 10.1007/s00261-020-02795-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/14/2020] [Accepted: 09/27/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE To evaluate the diagnostic performance of apparent diffusion coefficient (ADC) parameters by region of interest (ROI) methods in differentiating mass-forming autoimmune pancreatitis (AIP) from pancreatic ductal adenocarcinoma (PDAC). METHODS The institutional review board approved this retrospective study and the requirement for informed consent was waived. Twenty-three patients with mass-forming AIP and 144 patients with PDAC underwent diffusion-weighted imaging with b-values of 0 s/mm2 and 800 s/mm2. The minimum, maximum, and mean ADC values obtained by placing ROIs within lesions and percentile ADC values (10th, 25th, 50th, 75th, and 90th) from entire-lesion histogram analysis were compared between the two groups by using Mann-Whitney U tests. The diagnostic performance was evaluated by receiver operating characteristic (ROC) curve analysis. RESULTS The minimum, maximum, and mean ADC values were significantly different between mass-forming AIP and PDAC groups. ROC curve analysis showed that the maximum ADC had the highest diagnostic performance (0.92), while the minimum ADC value had the lowest diagnostic performance (0.72). The AUC of minimum ADC was significantly lower than that of maximum or mean ADC (P < 0.0001, P < 0.0001). The AUC was lowest in 10th percentile ADC value and highest in 90th percentile value. The AUC increased along with the increase of percentile values. CONCLUSION Either the maximum or mean ADC value was effective in differentiating mass-forming AIP from the PDAC group, while the minimum ADC value might not be recommended.
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Chen L, Orr CE, Wang T. Prevalence of histological features resembling autoimmune pancreatitis in neoplastic pancreas resections. Histopathology 2020; 77:673-677. [PMID: 32608526 DOI: 10.1111/his.14197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/25/2020] [Indexed: 02/06/2023]
Abstract
AIMS Types 1 and 2 autoimmune pancreatitis (AIP) can mimic pancreatic neoplasia. Due to the small quantity of tissue in mass-targeted pancreas biopsies, inflammatory features may raise the differential of AIP. However, the frequency of AIP-like histology in neoplastic pancreas is not well characterised. Therefore, the specificity of inflammatory lesions on biopsy with respect to the diagnosis of AIP is uncertain. METHODS AND RESULTS Neoplastic pancreas resections performed at our institution between 2008 and 2019 were retrospectively reviewed. Features of AIP types 1 and 2 were assessed in the non-neoplastic areas. If features of immunoglobulin (Ig)G4-associated AIP were seen, IgG4 immunohistochemistry was performed. We identified 163 neoplastic pancreas resections. Of these, 34 had one or more types of inflammatory lesions in non-neoplastic pancreatic tissue. Dense lymphoplasmacytic inflammation mimicking type 1 AIP was found in six cases with mild to moderately increased IgG4-positive plasma cells. Neutrophilic infiltrates in small intralobular ducts were found in 20 cases. Mild extralobular ductitis or duct microabscess was found in 10 specimens. Marked neutrophilic duct destruction that resembled granulocytic epithelial lesions was found in 12 cases. Some cases showed multiple features. CONCLUSION Approximately 20% of neoplastic pancreas resections showed focal areas that could raise the differential of AIP. More cases showed neutrophilic predominant inflammation as seen in type 2 autoimmune pancreatitis, compared to dense lymphoplasmacytic infiltrates seen in type 1 AIP. Pathologists must be cautious when making a diagnosis of AIP on biopsy tissue based on histological findings alone.
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Affiliation(s)
- Lina Chen
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada
| | - Christine E Orr
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada
| | - Tao Wang
- Department of Pathology and Molecular Medicine, Queen's University, Kingston, ON, Canada
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Seyhan EC, Özgül MA, Uğur E, Turan D, Ürer N. Immunoglobulin G4 Related Lung Disease. Turk Thorac J 2020; 21:280-282. [PMID: 32687790 DOI: 10.5152/turkthoracj.2019.190115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/18/2019] [Indexed: 11/22/2022]
Abstract
Immunoglobulin G4 related disease (IgG4-RD) is a relatively newly defined disease known for multiple organ involvement. Histopathologically, the disease is characterized by lymphoplasmatic inflammation, fibrosis, and enhanced levels of IgG4-positive plasma cells in tissues. IgG4-RD has been reported in almost every organ system. With pulmonary involvement, lesions have been described in the lung parenchyma, airways, pleura, and the mediastinum. Glucocorticoids are the first choice of treatment, but additional immunosuppressive drugs may be administered in refractory patients. In this article, we report a patient with IgG4 syndrome who had lung parenchyma, mediastinum, aorta wall, and pancreatic involvement. Histopathological findings and high serum IgG4 level established the diagnosis of IgG4-related disease. The patient was treated successfully with glucocorticoids.
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Affiliation(s)
- Ekrem Cengiz Seyhan
- Department of Chest Diseases, Ministry of Health, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey
| | - Mehmet Akif Özgül
- Department of Chest Diseases, Ministry of Health, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey
| | - Efsun Uğur
- Department of Chest Diseases, Ministry of Health, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey
| | - Demet Turan
- Department of Chest Diseases, Ministry of Health, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey
| | - Nur Ürer
- Department of Pathology, Ministry of Health, Yedikule Chest Diseases and Thoracic Surgery Training and Research Hospital, İstanbul, Turkey
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Abstract
Solid tumors of the pancreas encompass a variety of diagnoses with treatments ranging from observation to major abdominal surgery. Pancreatic ductal adenocarcinoma remains one of the most common and most lethal of these differential of diagnoses and requires a multimodality approach through a multidisciplinary team of specialists. This article reviews the classification, clinical presentation, and workup in differentiating solid tumors of the pancreas and serves as an additional tool for general surgeons faced with such a clinical finding, from a surgical oncology perspective.
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Affiliation(s)
- George Younan
- Department of Surgery, Inova Fair Oaks Hospital, Fairfax, VA, USA; Division of Hepato-Pancreato-Biliary Surgery, Virginia Surgery Associates, 13135 Lee Jackson Memorial Highway, Suite #305, Fairfax, VA 22033, USA.
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10
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Diagnostic strategy with a solid pancreatic mass. Presse Med 2019; 48:e125-e145. [DOI: 10.1016/j.lpm.2019.02.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 02/13/2019] [Indexed: 12/14/2022] Open
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12
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Serum Immunoglobulin G4 in Discriminating Autoimmune Pancreatitis From Pancreatic Cancer: A Diagnostic Meta-analysis. Pancreas 2018; 47:280-284. [PMID: 29351121 DOI: 10.1097/mpa.0000000000000994] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Differentiation between autoimmune pancreatitis (AIP) and pancreatic cancer (PC) is a clinical challenge. Emerging published data on the accuracy of serum immunoglobulin G4 (IgG4) for the differential diagnosis between AIP and PC are inconsistent. The objective of our study was to perform a meta-analysis evaluating the clinical utility of serum IgG4 in the differential diagnosis between AIP and PC. METHODS We performed a systematic literature search of multiple electronic databases. The methodological quality of each study was assessed according to the Quality Assessment of Diagnostic Accuracy Studies checklist. Random-effects model was used to summarize the diagnostic odds ratio and other measures of accuracy. RESULTS Eleven studies comprising 523 AIP patients and 771 PC patients were included in the meta-analysis. The summary estimates for serum IgG4 in distinguishing AIP from PC were as follows: diagnostic odds ratio, 57.30 (95% confidence interval [CI], 23.17-141.67); sensitivity, 0.72 (95% CI, 0.68-0.76); specificity, 0.93 (95% CI, 0.91-0.94). The area under the curve of serum IgG4 in distinguishing AIP from PC was 0.9200. CONCLUSIONS Our meta-analysis found that serum IgG4 has high specificity and relatively low sensitivity in the differential diagnosis between AIP and PC. Therefore, serum IgG4 is useful in distinguishing AIP from PC.
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Hsu WL, Chang SM, Wu PY, Chang CC. Localized autoimmune pancreatitis mimicking pancreatic cancer: Case report and literature review. J Int Med Res 2018; 46:1657-1665. [PMID: 29332510 PMCID: PMC6091832 DOI: 10.1177/0300060517742303] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Autoimmune pancreatitis (AP) is a rare autoimmune pancreatic manifestation of systemic immunoglobulin G4 (IgG4)-related sclerosing disease. Distinguishing between AP and pancreatic cancer is crucial because the clinical courses, treatments, and prognoses of these two disease entities are quite different. We herein report a case involving a 52-year-old man with subacute epigastralgia who visited our hospital for evaluation of a suspicious pancreatic mass found during esophagogastroduodenoscopy. Enhanced computed tomography (CT) revealed an enlarged lesion in the pancreatic head with encasement of hepatic vessels. The lesion also exhibited increased 18F-fluorodeoxyglucose accumulation on positron emission tomography/CT imaging, which was highly suggestive of pancreatic cancer. After open biopsy, morphologic examination showed an inflammatory infiltrate in the pancreas, which was compatible with chronic sclerotic pancreatitis. Further laboratory tests revealed an elevated serum IgG4 level, and the diagnosis of sclerotic pancreatitis was then confirmed. After corticosteroid treatment, the pancreatic lesion showed shrinkage on follow-up CT, and the serum IgG4 titer decreased to the normal range. This case suggests that clinicians should be familiar with the clinical presentations and diagnostic criteria of AP versus pancreatic cancer. An awareness of the differences between these diseases may avoid misdiagnosis and unnecessary surgical intervention.
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Affiliation(s)
- Wen-Ling Hsu
- 1 Department of Nuclear Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,2 Department of Medical Imaging and Radiological Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shu-Min Chang
- 1 Department of Nuclear Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Pei-Yin Wu
- 3 Concord Clinic, Linya District, Kaohsiung, Taiwan
| | - Chin-Chuan Chang
- 1 Department of Nuclear Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,4 Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Dong Y, D'Onofrio M, Hocke M, Jenssen C, Potthoff A, Atkinson N, Ignee A, Dietrich CF. Autoimmune pancreatitis: Imaging features. Endosc Ultrasound 2018; 7:196-203. [PMID: 28836516 PMCID: PMC6032703 DOI: 10.4103/eus.eus_23_17] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background and Objectives Autoimmune pancreatitis (AIP) remains a difficult disease to diagnose before treatment, particularly if presenting as a focal mass lesion. The purpose of this multicenter retrospective study is to analyze imaging features of histologically confirmed AIP to determine the additional diagnostic value of contrast-enhanced ultrasound (CEUS), contrast-enhanced endoscopic ultrasound (CE-EUS), and elastography to B-mode features. Patients and Methods We report on a retrospective data collection of 60 histologically confirmed cases of AIP in comparison to 16 patients with pancreatic adenocarcinomas (PDAC). All CE (-E) US examinations were assessed by two independent readers in consensus. The role of CEUS and CE-EUS for pancreatic evaluation was defined according to the 2011 European Federation of Societies for Ultrasound in Medicine and Biology guidelines. Results After injection of ultrasound (US) contrast agents, most AIP lesions displayed focal or diffuse isoenhancement (86.6%) in the arterial phase, while most of the PDAC lesions (93.7%) were hypoenhancing (P < 0.01). During the late phase, most AIP lesions were hyper-(65%) or iso-enhancing (35%), while most PDAC lesions were hypoenhancing (93.7%). CE-EUS was performed in a subset of ten patients and showed hyperenhancement in all AIP cases. Most focal AIP lesions (n = 27, 79.4%) were stiffer than the surrounding pancreatic parenchyma. Conclusions In this study, percutaneous and endoscopic contrast enhanced harmonic US techniques consistently revealed diffuse and focal types of AIP to have features consistent with vascularized lesions. Differentiation from the typically hypovascularized pancreatic adenocarcinoma was possible with CE (-E) US evaluation.
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Affiliation(s)
- Yi Dong
- Department of Ultrasound, Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Mirko D'Onofrio
- Department of Radiology, GB Rossi University Hospital, University of Verona, Verona, Italy
| | - Michael Hocke
- Medical Department, Helios Klinikum Meiningen, Meiningen, Germany
| | - Christian Jenssen
- Department of Internal Medicine, Krankenhaus Märkisch Oderland, Strausberg, Germany
| | - Andrej Potthoff
- Department of Gastroenterology, Hepatology and Endocrinology, Medizinische Hochschule Hannover, Hannover, Germany
| | - Nathan Atkinson
- Translational Gastroenterology Unit, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Andre Ignee
- Medical Department, Caritas Krankenhaus, Uhlandstr. 7, D-97980, Bad Mergentheim, Germany
| | - Christoph F Dietrich
- Medical Department, Caritas Krankenhaus, Uhlandstr. 7, D-97980, Bad Mergentheim, Germany
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15
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Yukina MY, Troshina EA, Platonova NM, Nuralieva NF. The autoimmune IgG4 -associated endocrine pathology. ACTA ACUST UNITED AC 2017. [DOI: 10.14341/omet2017343-47] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Immunoglobulin G4-associated diseases (IgG4-AD) arethe group of chronic progressive autoimmune fibro-inflammatory pathology of various organs and tissues, characterized by their enlargement and abundant infiltration of immunoglobulin G4-positive plasma cells, as well as an increase in the level of serum immunoglobulin G4 (IgG4).In most patients, the disease is characterized by a mild course.However, there is evidence of a high incidence of malignancies in patients with IgG4-AD.Among endocrine IgG4-associated pathologies, pancreatitis with outcome in diabetes mellitus, hypophysitis and thyroiditis are described.
Laboratory examination usually reveals an increased level of IgG4. However, the concentration of IgG4 could not be used as the only diagnostic criterion.The possibility of plasmablastsdetermining as a marker of the disease is discussed.Among the imaging techniques CT, MRI and 18F-FDG-PET/CT are used.However, the most informative method of diagnosis is biopsy.
Randomized clinical trials to determine clear recommendations for the treatment of IgG4-AD were not conducted.In most cases, glucocorticoids are prescribed, and immunosuppressive therapy is sometimes used.According to the results of recent studies, the genetically engineered drug rituximab is relatively effective in inducing remission of the disease.Given the high recurrence rate and the risk of malignancy, patients with IgG4-AD require careful long-term follow-up.
Thus, the review describes the clinical manifestations of IgG4-AD, examines the possibilities of their diagnosis and presents the existing methods of treatment.However, given the fact that IgG4-AD became a separate group of autoimmune pathology less than 20 years ago, there are insufficient data on these diseases. Researches related to epidemiology, pathophysiology, diagnosis and effective treatment of IgG4-AD are actual.
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Fujii-Lau LL, Levy MJ. The Role of Endoscopic Ultrasound in the Diagnosis of Autoimmune Pancreatitis. Gastrointest Endosc Clin N Am 2017; 27:643-655. [PMID: 28918803 DOI: 10.1016/j.giec.2017.06.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Autoimmune pancreatitis (AIP) is increasingly being recognized due to improved understanding of the disease and its criteria for diagnosis. The classic type 1 AIP can be diagnosed on clinical data, but type 2 AIP requires histologic confirmation. Current criteria incorporate cross-sectional imaging and endoscopic retrograde cholangiopancreatography in the diagnosis of AIP. However, endoscopic ultrasound (EUS) will likely have an increasing role in the diagnosis through its characteristic imaging, image-enhancing techniques, and its ability to acquire tissue through either fine needle aspiration or biopsy. This article will review the diagnostic challenges of AIP and the current role of EUS.
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Affiliation(s)
| | - Michael J Levy
- Division of Gastroenterology and Hepatology, Mayo Clinic, 200 1st Street Southwest, Rochester, MN 55902, USA.
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17
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Scharwächter C, Haage P. State of the Art Diagnosis of Pancreatic Ductal Adenocarcinoma. CURRENT RADIOLOGY REPORTS 2017. [DOI: 10.1007/s40134-017-0233-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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18
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Haage P, Schwartz CA, Scharwächter C. [Ductal adenocarcinoma and unusual differential diagnosis]. Radiologe 2016; 56:325-37. [PMID: 27000276 DOI: 10.1007/s00117-016-0090-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Ductal pancreatic adenocarcinoma is by far the most common solid tumor of the pancreas. It has a very poor prognosis, especially in the more advanced stages which are no longer locally confined. Due to mostly unspecific symptoms, imaging is key in the diagnostic process. Because of the widespread use of imaging techniques, incidental findings are to a greater extent discovered in the pancreas, which subsequently entail further work-up. Ductal pancreatic adenocarcinoma can be mimicked by a large number of different lesions, such as anatomical variants, peripancreatic structures and tumors, rarer primary solid pancreatic tumors, cystic tumors, metastases or different variants of pancreatitis. Additionally, a number of precursor lesions can be differentiated. The correct classification is thus important as an early diagnosis of ductal pancreatic adenocarcinoma is relevant for the prognosis and because the possibly avoidable treatment is very invasive. All major imaging techniques are principally suitable for pancreatic imaging. In addition to sonography of the abdomen, usually the baseline diagnostic tool, computed tomography (CT) with its superior spatial resolution, magnetic resonance imaging (MRI) with its good soft tissue differentiation capabilities, possibly in combination with MR cholangiopancreatography (MRCP), endosonography with its extraordinary spatial resolution, conceivably with additional endoscopic retrograde CP or the option of direct biopsy and finally positron emission tomography CT (PET-CT) as a molecular imaging tool are all particularly useful modalities. The various techniques all have its advantages and disadvantages; depending on the individual situation they may need to be combined.
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Affiliation(s)
- P Haage
- Zentrum für Radiologie HELIOS Universitätsklinikum Wuppertal, Universität Witten/Herdecke, Heusnerstr. 40, 42283, Wuppertal, Deutschland.
| | - C A Schwartz
- Zentrum für Radiologie HELIOS Universitätsklinikum Wuppertal, Universität Witten/Herdecke, Heusnerstr. 40, 42283, Wuppertal, Deutschland
| | - C Scharwächter
- Zentrum für Radiologie HELIOS Universitätsklinikum Wuppertal, Universität Witten/Herdecke, Heusnerstr. 40, 42283, Wuppertal, Deutschland
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19
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Courcet E, Beltjens F, Charon-Barra C, Guy F, Orry D, Ghiringhelli F, Arnould L. [An IgG4-related pancreatitis mimicking an adenocarcinoma: A case report]. Ann Pathol 2015; 35:511-4. [PMID: 26596693 DOI: 10.1016/j.annpat.2015.05.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 05/22/2015] [Accepted: 05/31/2015] [Indexed: 12/29/2022]
Abstract
Type 1 auto-immune pancreatitis (type 1 AIP) is the pancreatic manifestation of IgG4-related systemic disease (IgG4-RD). This disease has recently been individualized and is characterized by elevated serum IgG4 levels and extrapancreatic lesions with common histologic characteristic: dense infiltration of lymphocytes, IgG4-positive plasma cells and storiforme fibrosis. Obliterative phlebitis is frequently detected. The pancreas is frequently involved in this disease. As approach to the pancreas for histological examination is generally difficult, AIP is diagnosed using a combination of clinical, serological, morphological and histopathological features. In pseudotumoral cases, AIP can be misdiagnosed as pancreatic cancer. Since AIP responds dramatically to steroid therapy, accurate diagnosis of AIP can avoid unnecessary laparotomy or pancreatic resection. We report here a case of a patient who underwent surgery for presumed pancreatic cancer. The final diagnosis was type 1 AIP.
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Affiliation(s)
- Emilie Courcet
- Département de biologie et pathologie des tumeurs, service d'anatomie et cytologie pathologiques, CLCC Georges-François-Leclerc, 1, rue Professeur-Marion, 21000 Dijon, France.
| | - Françoise Beltjens
- Département de biologie et pathologie des tumeurs, service d'anatomie et cytologie pathologiques, CLCC Georges-François-Leclerc, 1, rue Professeur-Marion, 21000 Dijon, France
| | - Céline Charon-Barra
- Département de biologie et pathologie des tumeurs, service d'anatomie et cytologie pathologiques, CLCC Georges-François-Leclerc, 1, rue Professeur-Marion, 21000 Dijon, France
| | - France Guy
- Département de radiologie, CLCC Georges-François-Leclerc, 1, rue Professeur-Marion, 21000 Dijon, France
| | - David Orry
- Département de chirurgie, CLCC Georges-François-Leclerc, 1, rue Professeur-Marion, 21000 Dijon, France
| | - François Ghiringhelli
- Département d'oncologie, CLCC Georges-François-Leclerc, 1, rue Professeur-Marion, 21000 Dijon, France
| | - Laurent Arnould
- Département de biologie et pathologie des tumeurs, service d'anatomie et cytologie pathologiques, CLCC Georges-François-Leclerc, 1, rue Professeur-Marion, 21000 Dijon, France
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20
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Dueñas Disotuar S, Guerrero Vázquez R, del Castillo Palma MJ, Martínez-Brocca MA. Pancreatitis autoinmune en la enfermedad relacionada con IgG4 como causa infrecuente de diabetes mellitus. Med Clin (Barc) 2015; 145:274-6. [DOI: 10.1016/j.medcli.2014.11.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 11/09/2014] [Accepted: 11/20/2014] [Indexed: 10/24/2022]
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21
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Islam AD, Selmi C, Datta-Mitra A, Sonu R, Chen M, Gershwin ME, Raychaudhuri SP. The changing faces of IgG4-related disease: Clinical manifestations and pathogenesis. Autoimmun Rev 2015; 14:914-22. [PMID: 26112170 DOI: 10.1016/j.autrev.2015.06.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 06/09/2015] [Indexed: 02/08/2023]
Abstract
Since the earliest reports in 2001, immunoglobulin G4 (IgG4)-related disease has been defined as an autoimmune systemic disease characterized by the lymphoplasmacytic infiltration of affected tissues leading to fibrosis and obliterative phlebitis along with elevated serum IgG4 levels. Prior to this unifying hypothesis, a plethora of clinical manifestations were considered as separate entities despite the similar laboratory profile. The pathology can be observed in virtually all organs and may thus be a challenging diagnosis, especially when the adequate clinical suspicion is not present or when obtaining a tissue biopsy is not feasible. Nonetheless, the most frequently involved organs are the pancreas and exocrine glands but these may be spared. Immunosuppressants lead to a prompt clinical response in virtually all cases and prevent histological sequelae and, as a consequence, an early differential diagnosis from other conditions, particularly infections and cancer, as well as an early treatment should be pursued. We describe herein two cases in which atypical disease manifestations were observed, i.e., one with recurrent neck lymph node enlargement and proptosis, and one with jaundice. Our understanding of the pathogenesis of IgG4-related disease is largely incomplete but data support a significant role for Th2 cytokines with the contribution of innate immunity factors such as Toll-like receptors, macrophages and basophils. Further, macrophages activated by IL4 overexpress B cell activating factors and contribute to chronic inflammation and the development of fibrosis. We cannot rule out the possibility that the largely variable disease phenotypes reflect different pathogenetic mechanisms and the tissue microenvironment may then contribute to the organ involvement.
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Affiliation(s)
- Arshia Duza Islam
- Department of Internal Medicine, Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis, School of Medicine, Davis, CA, USA; VA Medical Center Sacramento, Mather, CA, USA
| | - Carlo Selmi
- Division of Rheumatology and Clinical Immunology, Humanitas Research Hospital, Rozzano, Italy; BIOMETRA Department, University of Milan, Italy
| | | | - Rebecca Sonu
- Department of Pathology and Laboratory Medicine, University of California Davis, School of Medicine, Davis, CA, USA
| | - Mingyi Chen
- Department of Pathology and Laboratory Medicine, University of California Davis, School of Medicine, Davis, CA, USA
| | - M Eric Gershwin
- Department of Internal Medicine, Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis, School of Medicine, Davis, CA, USA
| | - Siba P Raychaudhuri
- Department of Internal Medicine, Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis, School of Medicine, Davis, CA, USA; VA Medical Center Sacramento, Mather, CA, USA.
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22
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Rotzinger R, Bläker H, Bahra M, Denecke T, Grieser C. CT and MRI Findings of Autoimmune Polymorph Bifocal Pancreatitis Mimicking Pancreatic Adenocarcinoma: A Case Report and Review of the Literature. J Investig Med High Impact Case Rep 2015; 3:2324709615576988. [PMID: 26425636 PMCID: PMC4586910 DOI: 10.1177/2324709615576988] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Autoimmune pancreatitis is a rare type of chronic pancreatitis. It is supposed to be a pancreatic manifestation of an immune-complex modulated systemic disorder. In contrast, pancreatic adenocarcinoma is the most frequent malignant neoplasm of the pancreas. Within the rare type of focal autoimmune pancreatitis, only few presentations with multifocal pancreatic lesions have been described. Herein we report a case of a 58-year-old patient with autoimmune pancreatitis presenting with bifocal manifestations of the pancreatic head and tail, mimicking pancreatic adenocarcinoma clinically, on computed tomography and magnetic resonance imaging. Typical imaging findings of autoimmune pancreatitis are compared with typical findings in pancreatic carcinoma. The diagnostic dilemma of differentiating between both entities is discussed. A review of the present literature regarding multifocal presence of autoimmune pancreatitis is performed.
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Affiliation(s)
| | | | - Marcus Bahra
- Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Timm Denecke
- Charité-Universitätsmedizin Berlin, Berlin, Germany
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23
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Deciphering autoimmune pancreatitis, a great mimicker: case report and review of the literature. Case Rep Gastrointest Med 2015; 2015:924532. [PMID: 25705529 PMCID: PMC4326036 DOI: 10.1155/2015/924532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 12/21/2014] [Accepted: 12/23/2014] [Indexed: 11/17/2022] Open
Abstract
Background. Autoimmune pancreatitis (AIP) is an atypical chronic inflammatory pancreatic disease that appears to involve autoimmune mechanisms. In recent years, AIP has presented as a new clinical entity with its protean pancreaticobiliary and systemic presentations. Its unique pathology and overlap of clinical and radiological features and absence of serological markers foster the disease's unique position. We report a case of diffuse type 1 autoimmune pancreatitis with obstructive jaundice managed with biliary sphincterotomy, stent placement, and corticosteroids. A 50-year-old Caucasian woman presented to our hospital with epigastric pain, nausea, vomiting, and jaundice. Workup showed elevated liver function tests (LFT) suggestive of obstructive jaundice, MRCP done showed diffusely enlarged abnormal appearing pancreas with loss of normal lobulated contours, and IgG4 antibody level was 765 mg/dL. EUS revealed a diffusely hypoechoic and rounded pancreatic parenchyma with distal common bile duct (CBD) stricture and dilated proximal CBD and common hepatic duct (CHD). ERCP showed tight mid to distal CBD stricture that needed dilatation, sphincterotomy, and placement of stent that led to significant improvement in the symptoms and bilirubin level. Based on clinical, radiological, and immunological findings, a definitive diagnosis of AIP was made. Patient was started on prednisone 40 mg/day and she clinically responded in 4 weeks.
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24
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Barral M, Taouli B, Guiu B, Koh DM, Luciani A, Manfredi R, Vilgrain V, Hoeffel C, Kanematsu M, Soyer P. Diffusion-weighted MR Imaging of the Pancreas: Current Status and Recommendations. Radiology 2015; 274:45-63. [DOI: 10.1148/radiol.14130778] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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25
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Lin K, Gao F, Chen Q, Liu Q, Chen S. Framework for interpretation of trypsin-antitrypsin imbalance and genetic heterogeneity in pancreatitis. Saudi J Gastroenterol 2015; 21:198-207. [PMID: 26228362 PMCID: PMC4542417 DOI: 10.4103/1319-3767.161643] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Early intracellular premature trypsinogen activation was interpreted as the key initiator of pancreatitis. When the balance in the homeostasis of trypsin and antitrypsin system is disequilibrated, elevated aggressive enzymes directly attack the pancreatic tissue, which leads to pancreatic destruction and inflammation. However, trypsin alone is not enough to cause complications in pancreatitis, which may play a crucial role in modulating signaling events in the initial phase of the disease. NFκB activation is the major inflammatory pathway involved in the occurrence and development of pancreatitis and it can be induced by intrapancreatic activation of trypsinogen. Synthesis of trypsinogen occurs in endoplasmic reticulum (ER), and ER stress is an important early acinar cell event. Components of ER stress response are known to be able to trigger cell death as well as NFκB signaling cascade. The strongest evidence supporting the trypsin-centered theory is that gene mutations, which lead to the generation of more trypsin, or reduce the activity of trypsin inhibitors or trypsin degradation, are associated with pancreatitis. Thus, trypsin-antitrypsin imbalance may be the first step leading to pancreatic autodigestion and inducing other pathways. Continued experimental studies are necessary to determine the specific relationships between trypsin-antitrypsin imbalance and genetic heterogeneity in pancreatitis. In this article, we review the latest advances that contributed to the understanding of the basic mechanisms behind the occurrence and development of pancreatitis with a focus on the interpretation of trypsin-antitrypsin imbalance and their relationships with other inflammation pathways. We additionally highlight genetic predispositions to pancreatitis and possible mechanisms associated with them.
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Affiliation(s)
- Kun Lin
- Department of Laboratory Medicine, Shanghai First People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Feng Gao
- Department of Pathology, The First Affiliated Hospital, Fuzhou, China,Address for correspondence: Dr. Feng Gao, Department of Pathology, The First Affiliated Hospital, Fujian Medical University, Fuzhou - 350005, China. E-mail:
| | - Qingquan Chen
- Department of Laboratory Medicines, The First Affiliated Hospital, Fuzhou, China
| | - Qicai Liu
- Department of Laboratory Medicines, The First Affiliated Hospital, Fuzhou, China
| | - Shu Chen
- Department of Pharmaceutical Analysis, Fujian Medical University, Fuzhou, China
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Abstract
The early and accurate characterization of pancreatic masses remains a challenge in diagnostic radiology, while the continuously evolving diagnostic possibilities give rise to an ever-increasing number of incidentally found pancreatic masses. This article discusses the relevance and role of ultrasound, endoscopic ultrasound, computed tomography (CT), magnetic resonance imaging (MRI) and positron emission tomography (PET) in the diagnosis of pancreatic lesions. Specific protocols such as MR cholangiopancreatography and multiphase CT allow for a close characterization. While CT and MRI deliver information to further evaluate pancreatic disease, PET/CT has shown potential for staging purposes and in the clinical follow-up of pancreatic cancer patients. Common differential diagnoses regarding pancreatic cancer are discussed, and typical imaging features of anatomical variations, cystic lesions and pancreatitis are illustrated, together with clinical signs of pancreatic disease. The use of cross-sectional imaging in correlation with clinical features allows for an accurate and early detection of pancreatic masses and assists in differentiating benign from malignant disease.
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Affiliation(s)
- Daniel Putzer
- Department of Radiology, Innsbruck Medical University, Innsbruck, Austria
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27
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Sun L, Zhou Q, Brigstock DR, Yan S, Xiu M, Piao RL, Gao YH, Gao RP. Focal autoimmune pancreatitis and chronic sclerosing sialadenitis mimicking pancreatic cancer and neck metastasis. World J Gastroenterol 2014; 20:17674-17679. [PMID: 25516685 PMCID: PMC4265632 DOI: 10.3748/wjg.v20.i46.17674] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 06/08/2014] [Accepted: 07/11/2014] [Indexed: 02/06/2023] Open
Abstract
Type 1 autoimmune pancreatitis (AIP) or chronic sclerosing sialadenitis (Küttner’s tumour) is an uncommon disorder that has recently been confirmed as an IgG4-related disease. Here, we describe a rare case of a 53-year-old male patient who primarily presented with pancreatic body mass, left neck mass and several lumps in his lower lip mimicking pancreatic cancer (PC) and neck metastasis. The patient underwent pancreatic body mass and labial gland lumps resection as well as an ultrasound-guided biopsy of the left neck mass. He was diagnosed with IgG4-related focal type of AIP (f-AIP) and Küttner’s tumour by immunohistochemistry. The patient responded well to corticosteroid therapy and remains healthy with no signs of recurrence at one year follow-up. The differentiation of f-AIP from PC is very important to avoid unnecessary pancreatic resection.
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Crosara S, D'Onofrio M, De Robertis R, Demozzi E, Canestrini S, Zamboni G, Pozzi Mucelli R. Autoimmune pancreatitis: Multimodality non-invasive imaging diagnosis. World J Gastroenterol 2014; 20:16881-16890. [PMID: 25493001 PMCID: PMC4258557 DOI: 10.3748/wjg.v20.i45.16881] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/03/2014] [Accepted: 09/16/2014] [Indexed: 02/06/2023] Open
Abstract
Autoimmune pancreatitis (AIP) is characterized by obstructive jaundice, a dramatic clinical response to steroids and pathologically by a lymphoplasmacytic infiltrate, with or without a pancreatic mass. Type 1 AIP is the pancreatic manifestation of an IgG4-related systemic disease and is characterized by elevated IgG4 serum levels, infiltration of IgG4-positive plasma cells and extrapancreatic lesions. Type 2 AIP usually has none or very few IgG4-positive plasma cells, no serum IgG4 elevation and appears to be a pancreas-specific disorder without extrapancreatic involvement. AIP is diagnosed in approximately 2%-6% of patients that undergo pancreatic resection for suspected pancreatic cancer. There are three patterns of autoimmune pancreatitis: diffuse disease is the most common type, with a diffuse, “sausage-like” pancreatic enlargement with sharp margins and loss of the lobular contours; focal disease is less common and manifests as a focal mass, often within the pancreatic head, mimicking a pancreatic malignancy. Multifocal involvement can also occur. In this paper we describe the features of AIP at ultrasonography, computed tomography, magnetic resonance and positron emission tomography/computed tomography imaging, focusing on diagnosis and differential diagnosis with pancreatic ductal adenocarcinoma. It is of utmost importance to make an early correct differential diagnosis between these two diseases in order to identify the optimal therapeutic strategy and to avoid unnecessary laparotomy or pancreatic resection in AIP patients. Non-invasive imaging plays also an important role in therapy monitoring, in follow-up and in early identification of disease recurrence.
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Franchello A, Gonella F, Campra D, Limerutti G, Bruno M, De Angelis C, Cassine D, Fronda G, Silvestri S. A rare case of IgG4-related systemic disease manifesting with pancreatic head mass mimicking borderline resectable cancer. Int J Surg Case Rep 2014; 5:1095-7. [PMID: 25460484 PMCID: PMC4275972 DOI: 10.1016/j.ijscr.2014.11.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Accepted: 11/06/2014] [Indexed: 01/02/2023] Open
Abstract
Diagnostic algorithm for pancreatic head mass. Differential diagnosis between pancreatic cancer and mass forming autoimmune pancreatitis. Diagnosis and treatment of IgG4-related systemic disease.
INTRODUCTION Autoimmune pancreatitis (AIP) is a rare pancreatic disorder among chronic pancreatitis that can mimick pancreatic cancer (PC). Patients with type 1 AIP usually present obstructive jaundice associated with high level of IgG4 in serum and a pancreatic mass at radiological imaging; these disorders may be associated with other organs lesions presenting the same histopathological features, and in these cases AIP should be considered a pancreatic localization of an IgG4-related systemic disease. PRESENTATION OF CASE We report the case of a young man with initial suspect of PC to be treated with surgery, and final diagnosis of AIP in the context of an IgG4-related systemic disease. DISCUSSION Because of its similar features, several algorithms have been proposed for AIP diagnosis, based on combination of clinical/serological and radiological criteria. However, histology represents the only way to obtain definitive diagnosis, even if sometimes it is difficult to obtain biological samples. CONCLUSION IgG4-related systemic disease must be taken into account among differential diagnosis during the workup for PC, in order to avoid unnecessary surgery.
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Affiliation(s)
| | | | - Donata Campra
- Department of Surgery, Molinette Hospital, Turin, Italy
| | | | - Mauro Bruno
- Department of Gastroenterology, Molinette Hospital, Turin, Italy
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Saavedra-Perez D, Vaquero EC, Ayuso JR, Fernandez-Cruz L. Pancreatitis autoinmune: un dilema quirúrgico. Cir Esp 2014; 92:645-53. [DOI: 10.1016/j.ciresp.2014.01.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 01/25/2014] [Indexed: 01/06/2023]
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31
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Lee LK, Sahani DV. Autoimmune pancreatitis in the context of IgG4-related disease: Review of imaging findings. World J Gastroenterol 2014; 20:15177-15189. [PMID: 25386067 PMCID: PMC4223252 DOI: 10.3748/wjg.v20.i41.15177] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 05/11/2014] [Accepted: 07/22/2014] [Indexed: 02/06/2023] Open
Abstract
Current understanding of autoimmune pancreatitis (AIP) recognizes a histopathological subtype of the disease to fall within the spectrum of IgG4-related disease. Along with clinical, laboratory, and histopathological data, imaging plays an important role in the diagnosis and management of AIP, and more broadly, within the spectrum of IgG4-related disease. In addition to the defined role of imaging in consensus diagnostic protocols, an array of imaging modalities can provide complementary data to address specific clinical concerns. These include contrast-enhanced computed tomography (CT) and magnetic resonance (MR) imaging for pancreatic parenchymal lesion localization and characterization, endoscopic retrograde and magnetic resonance cholangiopancreatography (ERCP and MRCP) to assess for duct involvement, and more recently, positron emission tomography (PET) imaging to assess for extra-pancreatic sites of involvement. While the imaging appearance of AIP varies widely, certain imaging features are more likely to represent AIP than alternate diagnoses, such as pancreatic cancer. While nonspecific, imaging findings which favor a diagnosis of AIP rather than pancreatic cancer include: delayed enhancement of affected pancreas, mild dilatation of the main pancreatic duct over a long segment, the “capsule” and “penetrating duct” signs, and responsiveness to corticosteroid therapy. Systemic, extra-pancreatic sites of involvement are also often seen in AIP and IgG4-related disease, and typically respond to corticosteroid therapy. Imaging by CT, MR, and PET also play a role in the diagnosis and monitoring after treatment of involved sites.
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Morse B, Centeno B, Vignesh S. Autoimmune pancreatitis: updated concepts of a challenging diagnosis. Am J Med 2014; 127:1010.e1-9. [PMID: 24835039 DOI: 10.1016/j.amjmed.2014.04.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 04/25/2014] [Accepted: 04/28/2014] [Indexed: 12/30/2022]
Abstract
Autoimmune pancreatitis is a benign process characterized by inflammation and fibrosis. It is now known that cases of "autoimmune pancreatitis" actually consist of two distinct pathologic entities. Type 1 autoimmune pancreatitis is a manifestation of a systemic process, immunoglobulin G subclass 4 (IgG4)-related disease. IgG4-related disease can affect virtually every organ system in the body. Type 1 affects older patients and is characterized by an elevated serum IgG4 level and sites of extrapancreatic disease. Type 2 autoimmune pancreatitis is a disease process confined to the pancreas. It affects younger patients and is associated with inflammatory bowel disease. Type 2 is not associated with elevated IgG4 levels or extrapancreatic disease. Both subtypes can mimic malignancy, particularly pancreatic cancer. Awareness of the clinical and imaging features of the subtypes of autoimmune pancreatitis is important to avoid an incorrect diagnosis of malignancy.
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Affiliation(s)
- Brian Morse
- Diagnostic Imaging, Moffitt Cancer Center, Tampa, Fla.
| | | | - Shivakumar Vignesh
- Gastroenterology and Hepatology, SUNY Downstate Medical Center, Brooklyn, NY
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Talar-Wojnarowska R, Gąsiorowska A, Olakowski M, Dranka-Bojarowska D, Lampe P, Śmigielski J, Kujawiak M, Grzegorczyk J, Małecka-Panas E. Utility of serum IgG, IgG4 and carbonic anhydrase II antibodies in distinguishing autoimmune pancreatitis from pancreatic cancer and chronic pancreatitis. Adv Med Sci 2014; 59:288-92. [PMID: 25194335 DOI: 10.1016/j.advms.2014.08.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2014] [Revised: 08/02/2014] [Accepted: 08/12/2014] [Indexed: 02/06/2023]
Abstract
PURPOSE Autoimmune pancreatitis (AIP) can mimic pancreatic cancer in its clinical presentation, imaging features and laboratory parameters. The aim of our study was to compare IgG, IgG4 and anti-CAIIAb serum levels in patients with AIP, pancreatic adenocarcinoma (PA) and chronic pancreatitis (CP) and to assess their clinical significance and utility in differential diagnosis of pancreatic diseases. PATIENT/METHODS The study included 124 patients: 45 with PA, 24 with AIP and 55 with CP. Peripheral venous blood samples were obtained from all analyzed patients at the time of hospital admission and total IgG, IgG4 and anti-CAIIAB serum levels were measured using ELISA tests. RESULTS Serum levels of IgG, IgG4 and anti-CAIIAb were significantly higher in patients with AIP compared to PA and CP patients (p<0.001). In AIP patients the median IgG levels were 19.7 g/l, IgG4 levels - 301.9 mg/dl and anti-CAIIAb - 81.82 ng/ml, compared to 10.61 g/l, 123.2mg/dl and 28.6 ng/ml, respectively, in PA patients. IgG4 for the cut-off 210 mg/dl showed the best sensitivity and specificity (83.8% and 89.5%) in AIP diagnosis compared to IgG (69.3% and 87.3%, respectively) and anti-CAIIAb (45.3% and 74.3%). However, 16 (35.5%) patients with PA and 14 (25.4%) patients with CP had IgG4 levels greater than 140 mg/dl. Moreover, in 3 (6.67%) patients with pancreatic cancer those values were greater than 280 mg/dl. No patients with CP had IgG4 more than 280 mg/dl. CONCLUSIONS IgG4 at cut-off 210 mg/dl showed the best sensitivity and specificity in AIP diagnosis compared to IgG and anti-CAIIAb, however elevations of serum IgG4 may be seen in subjects without AIP, including pancreatic cancer.
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Affiliation(s)
| | - Anita Gąsiorowska
- Department of Digestive Tract Diseases, Medical University of Lodz, Poland
| | - Marek Olakowski
- Department of Digestive Tract Surgery, Silesian Medical University, Katowice, Poland
| | | | - Paweł Lampe
- Department of Digestive Tract Surgery, Silesian Medical University, Katowice, Poland
| | - Jacek Śmigielski
- Department of Thoracic Surgery, General and Oncological Surgery, Medical University of Lodz, Poland
| | - Magdalena Kujawiak
- Department of Microbiology and Laboratory Medical Immunology, Faculty of Medicine, Medical University of Lodz, Poland
| | - Janina Grzegorczyk
- Department of Microbiology and Laboratory Medical Immunology, Faculty of Medicine, Medical University of Lodz, Poland
| | - Ewa Małecka-Panas
- Department of Digestive Tract Diseases, Medical University of Lodz, Poland
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Pieringer H, Parzer I, Wöhrer A, Reis P, Oppl B, Zwerina J. IgG4- related disease: an orphan disease with many faces. Orphanet J Rare Dis 2014; 9:110. [PMID: 25026959 PMCID: PMC4223520 DOI: 10.1186/s13023-014-0110-z] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/03/2014] [Indexed: 02/07/2023] Open
Abstract
Immunoglobulin G4- related disease (IgG4-RD) is a rare systemic fibro-inflammatory disorder (ORPHA284264). Although patients have been described more than 100 years ago, the systemic nature of this disease has been recognized in the 21st century only. Type 1 autoimmune pancreatitis is the most frequent manifestation of IgG4-RD. However, IgG4-RD can affect any organ such as salivary glands, orbits, retroperitoneum and many others. Recent research enabled a clear clinical and histopathological description of IgG4-RD. Typically, lymphoplasmacellular inflammation, storiform fibrosis and obliterative phlebitis are found in IgG4-RD biopsies and the tissue invading plasma cells largely produce IgG4. Elevated serum IgG4 levels are found in many but not all patients. Consequently, diagnostic criteria for IgG4-RD have been proposed recently. Treatment is largely based on clinical experience and retrospective case series. Glucocorticoids are the mainstay of therapy, although adjunctive immunosuppressive agents are used in relapsing patients. This review summarizes current knowledge on clinical manifestations, pathophysiology and treatment of IgG4-RD.
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Recent advances in the diagnosis and management of autoimmune pancreatitis. AJR Am J Roentgenol 2014; 202:1007-21. [PMID: 24758653 DOI: 10.2214/ajr.13.11247] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Autoimmune pancreatitis (AIP) is a rare chronic relapsing steroid-responsive fibroinflammatory disorder of the pancreas that is likely caused by immune dysregulation. It is now thought that AIP consists of two distinct clinicopathologic syndromes currently designated as types 1 and 2. CONCLUSION A current update on etiopathogenesis, pathology, and clinical and imaging findings of AIP is provided with an emphasis on diagnosis and management.
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Immunoglobulin G4-related pancreatic and biliary diseases. CANADIAN JOURNAL OF GASTROENTEROLOGY = JOURNAL CANADIEN DE GASTROENTEROLOGIE 2014; 27:523-30. [PMID: 24078937 DOI: 10.1155/2013/180461] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Autoimmune pancreatitis and autoimmune cholangitis are new clinical entities that are now recognized as the pancreatico-biliary manifestations of immunoglobulin (Ig) G4-related disease. OBJECTIVE To summarize important clinical aspects of IgG4-related pancreatic and biliary diseases, and to review the role of IgG4 in the diagnosis of autoimmune pancreatitis (AIP) and autoimmune cholangitis (AIC). METHODS A narrative review was performed using the PubMed database and the following keywords: "IgG4", "IgG4 related disease", "autoimmune pancreatitis", "sclerosing cholangitis" and "autoimmune cholangitis". A total of 955 articles were retrieved; of these, 381 contained relevant data regarding the IgG4 molecule, pathogenesis of IgG-related diseases, and diagnosis, management and long-term follow-up for patients with AIP and AIC. Of these 381 articles, 66 of the most pertinent were selected. RESULTS The selected studies demonstrated the increasing clinical importance of both AIP and AIC, which can mimic pancreatic cancer and cholangiocarcinoma, respectively. IgG4 titration in tissue or blood cannot be used alone to diagnose all IgG4-related diseases; however, it is often a useful adjunct to clinical, radiological and histological features. AIP and AIC respond to steroids; however, relapse is common and long-term maintenance treatment often required. CONCLUSIONS A review of the diagnosis and management of both AIC and AIP is timely and pertinent to clinical practice because the amount of information regarding these conditions has increased substantially in the past few years, resulting in significant impact on the clinical management of affected patients.
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Abstract
Autoimmune pancreatitis (AIP) is a rare disease of unknown pathomechanism. AIP belongs to the IgG4-related disease family and responds well to steroids, although the relapse rate can reach up to 20-30%. Differentiation of AIP from the more common pancreatic cancer can be very challenging. About 20% of autoimmune pancreatitis is diagnosed postoperatively during final histological examination. While each of diagnostic investigations provide some additional information towards definitive diagnosis, the question still remains whether it is possible to prevent unnecessary pancreatic resection. We demonstrate the differential diagnostic opportunities when we present our case as well as discuss the literature data of this condition. In conclusion, we think that in case of a focal pancreatic lesion AIP should always be considered.
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Affiliation(s)
- Kristóf Dede
- Uzsoki Utcai Kórház Sebészeti Osztály 1145 Budapest Uzsoki u. 29
| | | | - András Taller
- Uzsoki Utcai Kórház Gasztroenterológiai Osztály Budapest
| | - Attila Bursics
- Uzsoki Utcai Kórház Sebészeti Osztály 1145 Budapest Uzsoki u. 29
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Migita K, Miyashita T, Mizuno A, Jiuchi Y, Ito M, Matsuo M, Izumi Y, Takeoka A, Nishino A, Hayashi M. IgG4-related epididymo-orchitis associated with bladder cancer: possible involvement of BAFF/BAFF-R interaction in IgG4-related urogenital disease. Mod Rheumatol 2013; 24:188-94. [DOI: 10.3109/14397595.2013.852841] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kiyoshi Migita
- Department of General Internal Medicine and Rheumatology, Clinical Research Center, NHO Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
| | - Taiichiro Miyashita
- Department of General Internal Medicine and Rheumatology, Clinical Research Center, NHO Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
| | - Aya Mizuno
- Department of General Internal Medicine and Rheumatology, Clinical Research Center, NHO Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
| | - Yuka Jiuchi
- Department of General Internal Medicine and Rheumatology, Clinical Research Center, NHO Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
| | - Masahiro Ito
- Department of Pathology, NHO National Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
| | - Manabu Matsuo
- Department of Urology, Nagasaki Prefecture Shimabara Hospital,
7895 Shimokawajiri, Shimabara 855-0861, Japan
| | - Yasumori Izumi
- Department of General Internal Medicine and Rheumatology, Clinical Research Center, NHO Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
| | - Atsushi Takeoka
- Department of General Internal Medicine and Rheumatology, Clinical Research Center, NHO Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
| | - Ayako Nishino
- Department of General Internal Medicine and Rheumatology, Clinical Research Center, NHO Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
| | - Mikio Hayashi
- Department of Urology, NHO National Nagasaki Medical Center,
2-1001-1 Kubara, Omura 856-8652, Japan
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A case of pancreatic cancer in the setting of autoimmune pancreatitis with nondiagnostic serum markers. Case Rep Surg 2013; 2013:809023. [PMID: 23781378 PMCID: PMC3679691 DOI: 10.1155/2013/809023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 05/15/2013] [Indexed: 12/21/2022] Open
Abstract
Background. Autoimmune pancreatitis (AIP) often mimics pancreatic cancer. The diagnosis of both conditions is difficult preoperatively let alone when they coexist. Several reports have been published describing pancreatic cancer in the setting of AIP. Case Report. The case of a 53-year-old man who presented with abdominal pain, jaundice, and radiological features of autoimmune pancreatitis, with a “sausage-shaped” pancreas and bulky pancreatic head with portal vein impingement, is presented. He had a normal serum IgG4 and only mildly elevated Ca-19.9. Initial endoscopic ultrasound-(EUS-) guided fine-needle aspiration (FNA) of the pancreas revealed an inflammatory sclerosing process only. A repeat EUS guided biopsy following biliary decompression demonstrated both malignancy and features of autoimmune pancreatitis. At laparotomy, a uniformly hard, bulky pancreas was found with no sonographically definable mass. A total pancreatectomy with portal vein resection and reconstruction was performed. Histology revealed adenosquamous carcinoma of the pancreatic head and autoimmune pancreatitis and squamous metaplasia in the remaining pancreas. Conclusion. This case highlights the diagnostic and management difficulties in a patient with pancreatic cancer in the setting of serum IgG4-negative, Type 2 AIP.
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Nagamachi S, Nishii R, Wakamatsu H, Mizutani Y, Kiyohara S, Fujita S, Futami S, Sakae T, Furukoji E, Tamura S, Arita H, Chijiiwa K, Kawai K. The usefulness of (18)F-FDG PET/MRI fusion image in diagnosing pancreatic tumor: comparison with (18)F-FDG PET/CT. Ann Nucl Med 2013; 27:554-63. [PMID: 23580090 DOI: 10.1007/s12149-013-0719-3] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Accepted: 03/17/2013] [Indexed: 12/17/2022]
Abstract
PURPOSE This study aimed at demonstrating the feasibility of retrospectively fused (18)F FDG-PET and MRI (PET/MRI fusion image) in diagnosing pancreatic tumor, in particular differentiating malignant tumor from benign lesions. In addition, we evaluated additional findings characterizing pancreatic lesions by FDG-PET/MRI fusion image. METHODS We analyzed retrospectively 119 patients: 96 cancers and 23 benign lesions. FDG-PET/MRI fusion images (PET/T1 WI or PET/T2WI) were made by dedicated software using 1.5 Tesla (T) MRI image and FDG-PET images. These images were interpreted by two well-trained radiologists without knowledge of clinical information and compared with FDG-PET/CT images. We compared the differential diagnostic capability between PET/CT and FDG-PET/MRI fusion image. In addition, we evaluated additional findings such as tumor structure and tumor invasion. RESULTS FDG-PET/MRI fusion image significantly improved accuracy compared with that of PET/CT (96.6 vs. 86.6 %). As additional finding, dilatation of main pancreatic duct was noted in 65.9 % of solid types and in 22.6 % of cystic types, on PET/MRI-T2 fusion image. Similarly, encasement of adjacent vessels was noted in 43.1 % of solid types and in 6.5 % of cystic types. Particularly in cystic types, intra-tumor structures such as mural nodule (35.4 %) or intra-cystic septum (74.2 %) were detected additionally. Besides, PET/MRI-T2 fusion image could detect extra benign cystic lesions (9.1 % in solid type and 9.7 % in cystic type) that were not noted by PET/CT. CONCLUSIONS In diagnosing pancreatic lesions, FDG-PET/MRI fusion image was useful in differentiating pancreatic cancer from benign lesions. Furthermore, it was helpful in evaluating relationship between lesions and surrounding tissues as well as in detecting extra benign cysts.
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Affiliation(s)
- Shigeki Nagamachi
- Department of Radiology, School of Medicine, Miyazaki University, 5200 Kihara, Kiyotake, Miyazaki-city, Miyazaki Prefecture, 889-1692, Japan.
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Current world literature. Curr Opin Organ Transplant 2013; 18:111-30. [PMID: 23299306 DOI: 10.1097/mot.0b013e32835daf68] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Percutaneous fine needle biopsy in pancreatic tumors: a study of 42 cases. Gastroenterol Res Pract 2012; 2012:908963. [PMID: 23304130 PMCID: PMC3530801 DOI: 10.1155/2012/908963] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 11/19/2012] [Accepted: 11/22/2012] [Indexed: 01/12/2023] Open
Abstract
The technological progress within the range of methods of pancreas imaging and their more common accessibility selects a group of patients requiring a microscopic diagnosis. Percutaneous fine needle aspiration biopsy under the control of ultrasonography (PCFNA/USG) is the method commonly used in determining the character of a focal pancreatic lesion. Aim of the Work. An assessment of the accessibility of PCFNA biopsy in the assessment of solid and cystic changes in a pancreas and the correlation of the results of imaging examination, cytological smear and concentration of a serous marker CA19-9. Material and Methodology. In our material we analysed 43 cases of tumors of the pancreas among the patients who were at the average age of 59 ± 10.4 (14 women, 28 men) diagnosed by PCFNA biopsy. Results. In a group we are 23 cases of cancer, 12 cases of inflammation and 7 cases of cellular atypia for which 2 cases of IPMN were included. The sensitivity of the method was 92.5% but specificity was 68%. In our opinion PCFNA/USG is a method of the comparable sensitivity and specificity with fine needle aspiration biopsy with EUS control and its efficiency depends to a considerable degree on experience and interdisciplinary collaboration.
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Dede K, Salamon F, Taller A, Teknős D, Bursics A. Autoimmune pancreatitis mimicking pancreatic tumor. J Surg Case Rep 2012; 2012:rjs012. [PMID: 24968399 PMCID: PMC3853626 DOI: 10.1093/jscr/rjs012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Autoimmune pancreatitis (AIP) is a rare disease of unknown pathomechanism. It belongs to the IgG4-related disease family and responds well to steroids, although the relapse rate can reach up to 20–30%. Differentiating AIP from the more common pancreatic cancer can be very challenging. About 20% of AIP is diagnosed postoperatively during final histological examination. Each of the investigative tools can add something to the definitive diagnosis; the question remains whether it is possible to prevent an unnecessary resection. Through our case we would like to demonstrate the differential diagnostic opportunities and present the literary background of this issue. In conclusion, we can state that whenever a focal pancreatic lesion is encountered AIP should always be considered.
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Affiliation(s)
- Kristóf Dede
- Department of Surgery-Vascular Surgery, Uzsoki Street Hospital, Budapest, Hungary
| | - Ferenc Salamon
- Department of Pathology, Uzsoki Street Hospital, Budapest, Hungary
| | - András Taller
- Department of Gastroenterology, Uzsoki Street Hospital, Budapest, Hungary
| | - Dániel Teknős
- Department of Surgery-Vascular Surgery, Uzsoki Street Hospital, Budapest, Hungary
| | - Attila Bursics
- Department of Surgery-Vascular Surgery, Uzsoki Street Hospital, Budapest, Hungary
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Gómez V, Michel JA. The great mimicker. Gastroenterology 2012; 143:1441, 1694. [PMID: 23099245 DOI: 10.1053/j.gastro.2012.07.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Accepted: 07/27/2012] [Indexed: 12/02/2022]
Affiliation(s)
- Victoria Gómez
- Department of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
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Abid SB, Hefaiedh R, Zghab S, Miloudi N, Gharbi L, Khalfallah MT. Pseudotumoral autoimmune pancreatitis mimicking a pancreatic cancer: a very difficult disease to diagnose. Clin Pract 2012; 2:e80. [PMID: 24765479 PMCID: PMC3981193 DOI: 10.4081/cp.2012.e80] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 08/29/2012] [Accepted: 08/30/2012] [Indexed: 12/16/2022] Open
Abstract
Autoimmune pancreatitis (AIP) is a rare disorder, although the exact prevalence is still unkown. It is a type of pancreatitis that is presumed to have an autoimmune aetiology, and is currently diagnosed based on a combination of 5 criteria. However, in this day and age, some patients with AIP are likely to be resected for the suspicion of malignancy. The authors report a case of pseudo-tumoral autoimmune pancreatitis, reviewing some literature about it and underlining the difficulty in the diagnosis. A 56-year-old patient was referred to our unit for upper abdominal pain. In his past medical history we note mellitus diabetes. The clinical examination was unremarkable. Laboratory data showed no abnormal values. Upper endoscopy showed antral gastritis. Transabdominal ultrasonography showed a hepatic steatosis and 5 angiomas. No computed tomography scan was made. Magnetic resonance imaging (MRI) showed 5 angiomas and a lesion of 20×20 mm of the pancreatic tail with decreased signal intensity on T1-weighted MR images, increased signal intensity on T2-weighted MR images. Due to concerns of pancreatic malignancy, the patient underwent open distal spleno-pancreatectomy. Histolo gical analysis of the resected specimen revealed no malignancy. Postoperatively, immunoglobulin G fraction 4 was slightly above of the upper limit of the normal range. After corticotherapy the patient is getting better. This case underlines the difficulties still encountered in the diagnosis of AIP. It has been frequently misdiagnosed as pancreatic cancer and caused unnecessary resection. In order to avoid unnecessary resections for an otherwise benign and easily treatable condition, it is urgent to refine diagnostic criteria and to reach an international consensus.
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Affiliation(s)
| | - Rania Hefaiedh
- Department of Surgery, Mongi Slim Hospital, Sidi Daoued LaMarsa, Tunisia
| | - Sameh Zghab
- Department of Surgery, Mongi Slim Hospital, Sidi Daoued LaMarsa, Tunisia
| | - Nizar Miloudi
- Department of Surgery, Mongi Slim Hospital, Sidi Daoued LaMarsa, Tunisia
| | - Lassad Gharbi
- Department of Surgery, Mongi Slim Hospital, Sidi Daoued LaMarsa, Tunisia
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Abstract
Immunoglobulin G4-related sclerosing cholangitis (IgG4-SC) is a recently defined disease entity characterized by elevated serum IgG4, chronic progressive obstructive jaundice, and diffuse or mass-forming inflammatory reaction rich in IgG4-positive plasma cells and lymphocytes associated with fibrosclerosis and obliterative phlebitis, which shares a number of clinical, biochemical, and radiological features with primary sclerosing cholangitis (PSC) or cholangiocarcinoma (CC). IgG4-SC is commonly associated with autoimmune pancreatitis (AIP). Steroid therapy comprises the mainstay of treatment for IgG4-SC patients. However, liver transplantation is the only useful treatment for PSC patients, and CC patients require surgical therapy. Therefore, the accurate discrimination between IgG4-SC and PSC or CC is a very important issue. In this article, we will review the features and role of immunoglobulin G4 (IgG4), the diagnosis and therapy of IgG4-SC, and the relations between IgG4-SC and AIP, PSC or CC.
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IgG4-related epididymo-orchitis associated with bladder cancer: possible involvement of BAFF/BAFF-R interaction in IgG4-related urogenital disease. Mod Rheumatol 2012. [DOI: 10.1007/s10165-012-0757-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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