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Fonseca JA, Gameiro J, Duarte I, Jorge S, Lopes JA. The neutrophil-to-lymphocyte ratio as a marker of vasculitis activity, severe infection and mortality in anca-associated vasculitis: A retrospective study. Nefrologia 2021; 41:321-328. [PMID: 36165341 DOI: 10.1016/j.nefroe.2021.07.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 07/25/2020] [Indexed: 06/16/2023] Open
Abstract
INTRODUCTION Anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV) is a multisystemic disease. Despite the improvement in mortality rate since the introduction of immunosuppression, long-term prognosis is still uncertain not only because of the disease activity but also due to treatment associated adverse effects. The neutrophil-to-lymphocyte ratio (NLR) has been demonstrated as an inflammatory marker in multiple settings. In this study, we aimed to investigate the prognostic ability of the NLR in AAV patients. METHODS We conducted a retrospective analysis of the clinical records of all adult patients with AVV admitted to the Nephrology and Renal Transplantation Department of Centro Hospitalar Universitário Lisboa Norte from January 2006 to December 2019. NLR was calculated at admission. The outcomes measured were severe infection at 3 months and one-year mortality. The prognostic ability of the NLR was determined using the receiver operating characteristic (ROC) curve. A cut-off value was defined as that with the highest validity. All variables underwent univariate analysis to determine statistically significant factors that may have outcomes. Only variables which significantly differed were used in the multivariate analysis using the logistic regression method. RESULTS We registered 45 cases of AVV. The mean age at diagnosis was 67.5±12.1 years and 23 patients were male. The mean Birmingham Vasculitis Activity Score (BVAS) at presentation was 26.0±10.4. Twenty-nine patients were ANCA-MPO positive, 7 ANCA-PR3 positive and 9 were considered negative ANCA vasculitis. At admission, mean serum creatinine (SCr) was 4.9±2.5mg/dL, erythrocyte sedimentation rate (ESR) was 76.9±33.8mm/h, hemoglobin was 9.5±1.7g/dL, C-reactive protein was 13.2±5.8mg/dL and NLR was 8.5±6.8. Thirty-five patients were treated with cyclophosphamide, eight patients with rituximab for induction therapy. Twenty patients developed severe infection within the first three months after starting induction immunosuppression. In a multivariate analysis, older age (73.6±10.5 vs. 62.6±11.3, p=0.002, adjusted OR 1.08 [95% CI 1.01-1.16], p=0.035) and higher NLR (11.9±7.4 vs. 5.9±5.0, p=0.002, adjusted OR 1.14 [95% CI 1.01-1.29], p=0.035) were predictors of severe infection at 3 months. NLR ≥4.04 predicted severe infection at 3 months with a sensitivity of 95% and specificity of 52% and the AUROC curve was 0.0794 (95% CI 0.647-0.900). Nine patients died within the first year. Severe infection at 3 months was independently associated with mortality within the first year (OR 6.19 [95% CI 1.12-34.32], p=0.037). CONCLUSIONS NLR at diagnosis was an independent predictor of severe infection within the first 3 months after immunosuppression start, and severe infection within the first three months was consequently correlated with one-year mortality. NLR is an easily calculated and low-cost laboratory inflammation biomarker and can prove useful in identifying AAV patients at risk of infection and poorer prognosis.
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Affiliation(s)
- José Agapito Fonseca
- Division of Nephrology and Renal Transplantation, Department of Medicine. Centro Hospitalar Universitário Lisboa Norte, EPE. Av. Prof. Egas Moniz, 1649-035 Lisboa, Portugal.
| | - Joana Gameiro
- Division of Nephrology and Renal Transplantation, Department of Medicine. Centro Hospitalar Universitário Lisboa Norte, EPE. Av. Prof. Egas Moniz, 1649-035 Lisboa, Portugal
| | - Inês Duarte
- Division of Nephrology and Renal Transplantation, Department of Medicine. Centro Hospitalar Universitário Lisboa Norte, EPE. Av. Prof. Egas Moniz, 1649-035 Lisboa, Portugal
| | - Sofia Jorge
- Division of Nephrology and Renal Transplantation, Department of Medicine. Centro Hospitalar Universitário Lisboa Norte, EPE. Av. Prof. Egas Moniz, 1649-035 Lisboa, Portugal
| | - José António Lopes
- Division of Nephrology and Renal Transplantation, Department of Medicine. Centro Hospitalar Universitário Lisboa Norte, EPE. Av. Prof. Egas Moniz, 1649-035 Lisboa, Portugal
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Fennelly E, Greenan E, Murphy CC. Corneal melt secondary to eosinophilic granulomatosis with polyangiitis. BMJ Case Rep 2019; 12:e229859. [PMID: 31229976 PMCID: PMC6605890 DOI: 10.1136/bcr-2019-229859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/03/2019] [Indexed: 11/04/2022] Open
Abstract
Eosinophilic granulomatosis with polyangiitis (EGPA) is a rare antineutrophil cytoplasmic antibody-associated vasculitis that can affect any organ system. It is most often characterised by chronic airway inflammation along with prominent peripheral blood eosinophilia, although the disease can affect the cardiovascular, gastrointestinal, renal or central nervous systems. Ocular manifestations are uncommon and when they do occur, are varied in their clinical presentations. To the best of our knowledge, this is the first case of corneal melt secondary to EGPA to have been reported.
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Affiliation(s)
- Evelyn Fennelly
- Dublin Mid-Leinster Intern Network, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Emily Greenan
- Department of Ophthalmology, Royal Victoria Eye and Ear Hospital, Dublin, Ireland
- Department of Ophthalmology, RCSI School of Medicine, Dublin, Ireland
| | - Conor C Murphy
- Department of Ophthalmology, Royal Victoria Eye and Ear Hospital, Dublin, Ireland
- Department of Ophthalmology, RCSI School of Medicine, Dublin, Ireland
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Tsurikisawa N, Oshikata C, Watanabe M, Tsuburai T, Kaneko T, Saito H. Innate immune response reflects disease activity in eosinophilic granulomatosis with polyangiitis. Clin Exp Allergy 2018; 48:1305-1316. [PMID: 29908086 DOI: 10.1111/cea.13209] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 05/04/2018] [Accepted: 05/08/2018] [Indexed: 12/14/2022]
Abstract
BACKGROUND Eosinophilic granulomatosis with polyangiitis (EGPA) is a disease characterized by allergic granulomatosis, necrotizing vasculitis, and peripheral blood eosinophilia. Interleukin (IL)-33, thymic stromal lymphopoietin (TSLP), and type 2 innate lymphoid cells (ILC2) are involved in the innate and type 2 immune responses in EGPA. However, the relationships among these molecules and the mechanisms underlying the development of EGPA remain unknown. OBJECTIVE We investigated the relationships among peripheral blood eosinophil count, serum IL-33 and TSLP concentration, and peripheral blood ILC2 count in patients with EGPA, chronic eosinophilic pneumonia (CEP), or bronchial asthma (BA). METHODS We recruited 86 patients with EGPA in three groups (remission, relapse, and onset), 25 patients with CEP at active or inactive stages of disease, and 11 patients with BA. In patients with EGPA, CEP, or BA, serum IL-33, sST2, and TSLP concentrations were determined using ELISA and peripheral blood ILC2 counts (as Lin-1- CD127+ CRTH2+ cells) were determined using flow cytometry. RESULTS Peripheral blood eosinophil count or ILC2 count, and serum sST2 or TSLP concentration were higher in patients with EGPA at onset than in those with EGPA at relapse or remission, or in those with BA or CEP. Serum IL-33 concentration was higher in patients with EGPA at relapse than in those with EGPA at onset or remission, or in those with BA or CEP. In a logistic regression model, EGPA disease activity was correlated with serum IL-33 concentration and peripheral blood ILC2 count, but not daily systemic and inhaled corticosteroid dose or immunosuppressant use. Eosinophil count was correlated with peripheral blood ILC2 count and serum TSLP concentration, but not serum IL-33 concentration. CONCLUSIONS Increased peripheral blood ILC2 count and serum IL-33 concentration were associated with disease activity in EGPA. Increases in serum IL-33 concentration may indicate the presence of active vasculitis rather than peripheral or tissue eosinophilia.
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Affiliation(s)
- Naomi Tsurikisawa
- Department of Allergy, Hiratuska City Hospital, Hiratsuka, Japan.,Department of Allergy and Respirology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Chiyako Oshikata
- Department of Allergy, Hiratuska City Hospital, Hiratsuka, Japan.,Department of Allergy and Respirology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Maiko Watanabe
- Division of Microbiology, National Institute of Health Science, Kawasaki, Japan
| | - Takahiro Tsuburai
- Department of Allergy and Respirology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Department of Respirology, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, Yokohama, Japan
| | - Takeshi Kaneko
- Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Hiroshi Saito
- Clinical Research Center, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
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Navarro-Mendoza EP, Tobón GJ. Eosinophilic Granulomatosis With Polyangiitis: Newer Therapies. Curr Rheumatol Rep 2018; 20:23. [PMID: 29611001 DOI: 10.1007/s11926-018-0736-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
PURPOSE OF REVIEW Eosinophilic granulomatosis with polyangiitis (EGPA) is a systemic disseminated vasculitis associated with extravascular granulomas in patients suffering from asthma and tissue eosinophilia. Current therapies to achieve remission and prevent relapse include glucocorticoids and immunosuppressants like cyclophosphamide. RECENT FINDINGS With the right treatment, clinical prognosis is favorable, so concerted efforts have been made in recent years to find new alternatives for treating severe EGPA. Monoclonal antibodies such as omalizumab, rituximab, and mepolizumab are among these new options. This review summarizes the pathogenesis and clinical manifestations of EGPA and critically examines current and emerging therapies.
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Affiliation(s)
- Erika P Navarro-Mendoza
- GIRAT: Grupo de Investigación en Reumatología, Autoinmunidad y Medicina Traslacional, Fundación Valle del Lili, Universidad Icesi, Cl 18 #, Cali, 122-135, Colombia
| | - Gabriel J Tobón
- GIRAT: Grupo de Investigación en Reumatología, Autoinmunidad y Medicina Traslacional, Fundación Valle del Lili, Universidad Icesi, Cl 18 #, Cali, 122-135, Colombia.
- Immunology Laboratory, Fundación Valle del Lili, Cali, Colombia.
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Zuckerman R, Patel M, Alpert DR. A tale of two vasculitides: biopsy-proven giant cell arteritis followed by the independent development of renal-limited microscopic polyangiitis. BMJ Case Rep 2017; 2017:bcr-2017-219228. [PMID: 28432167 DOI: 10.1136/bcr-2017-219228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
We describe an 80-year-old woman who presented with headaches, bilateral jaw claudication and visual symptoms. She was diagnosed with giant cell arteritis, which was confirmed by temporal artery biopsy. She was treated with high-dose prednisone followed by a slow taper, with complete resolution of symptoms. Approximately 4 years later, she developed progressively worsening renal function associated with haematuria. Serological workup revealed a high-titre perinuclear antinuclear cytoplasmic antibody and antibodies to myeloperoxidase. Renal biopsy demonstrated a pauci-immune focal crescentic glomerulonephritis. Extensive review of systems, physical exam and diagnostic studies demonstrated no evidence of extra-renal disease, and she was diagnosed with renal-limited microscopic polyangiitis. High-dose prednisone was resumed, but she refused treatment with either cyclophosphamide or rituximab due to concern for toxicity. Her prednisone dose was tapered and renal function stabilised. Our case highlights the need to recognise the successive occurrence of two distinct vasculitides in a single patient and monitor accordingly.
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Affiliation(s)
- Roman Zuckerman
- Medicine, Jersey Shore University Medical Center, Neptune, New Jersey, USA
| | - Mayur Patel
- Medicine/Nephrology, Jersey Shore University Medical Center, Neptune, New Jersey, USA
| | - Deborah R Alpert
- Medicine/Rheumatology, Jersey Shore University Medical Center, Neptune, New Jersey, USA
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Srinivasan A, Kleinberg TT, Murchison AP, Bilyk JR. Laboratory Investigations for Diagnosis of Autoimmune and Inflammatory Periocular Disease: Part II. Ophthalmic Plast Reconstr Surg 2017; 33:1-8. [PMID: 27115208 DOI: 10.1097/iop.0000000000000701] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
PURPOSE To review the important laboratory serological investigations routinely performed for the diagnosis of autoimmune and inflammatory diseases of the orbit and ocular adnexa. METHODS Review of the literature as well as personal clinical experience of the authors. Due to the extensive nature of the topic, the review has been split into 2 parts. Part I covers thyroid eye disease, IgG4-related disease, and myasthenia gravis. In part II of the review, sarcoidosis, vasculitis, Sjögren syndrome, and giant cell arteritis will be discussed. RESULTS Several relatively specific serologic tests are available for the diagnosis of a variety of inflammatory and serologic diseases of the orbit. CONCLUSION In cases of limited orbital or sino-orbital disease, serologic testing may be negative in a significant number of patients. Specifically, the clinician should be wary of ruling out limited orbital sarcoid or sinoorbital granulomatosis with polyangiitis based on serologic testing alone. Part I of this review has covered serologic testing for thyroid eye disease, IgG4-related disease, and myasthenia gravis. In part II, the authors discuss serologic testing for sarcoidosis, vasculitis, Sjögren syndrome (SS), and giant cell arteritis (GCA).
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Affiliation(s)
- Archana Srinivasan
- *Research Department, Wills Eye Hospital, Philadelphia, Pennsylvania, †Worcester Ophthalmology Associates, Worcester, Massachusetts, and ‡Skull Base Division, Neuro-Ophthalmology Service, Wills Eye Hospital, Philadelphia, Pennsylvania, U.S.A
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Abstract
Systemic vasculitides are caused by inflammation of blood vessels and can affect any organ and any part of the gastrointestinal tract, hepatic and biliary system, as well as the pancreas. These disorders can cause a wide array of gastrointestinal manifestations, from asymptomatic elevated transaminase levels and mild abdominal pain to potentially life-threatening bowel perforations and peritonitis. A diagnosis based solely on gastrointestinal symptoms is challenging as these manifestations are not specific. Conversely, diagnostic and therapeutic delays can be rapidly detrimental. In this article, we review the epidemiology, characteristics and management of the main gastrointestinal manifestations of systemic vasculitides, including polyarteritis nodosa and antineutrophil cytoplasm antibody-associated vasculitides, as well as isolated vasculitides limited to the gastrointestinal tract.
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Fong Y, Kauffmann RM, Marcinkowski E, Singh G, Schoellhammer HF. Dermatologic Emergencies. SURGICAL EMERGENCIES IN THE CANCER PATIENT 2017. [PMCID: PMC7122021 DOI: 10.1007/978-3-319-44025-5_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuman Fong
- Department of Surgery, City of Hope Medical Center, Duarte, California USA
| | | | - Emily Marcinkowski
- Surgical Oncology Hepatobiliary Surgery, City of Hope Medical Center, Duarte, California USA
| | - Gagandeep Singh
- Department of Surgery, City of Hope Medical Center, Durate, California USA
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Latorre M, Baldini C, Seccia V, Pepe P, Novelli F, Celi A, Bacci E, Cianchetti S, Dente FL, Bombardieri S, Paggiaro P. Asthma Control and Airway Inflammation in Patients with Eosinophilic Granulomatosis with Polyangiitis. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2016; 4:512-9. [PMID: 26883543 DOI: 10.1016/j.jaip.2015.12.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/18/2015] [Revised: 12/15/2015] [Accepted: 12/21/2015] [Indexed: 12/01/2022]
Abstract
BACKGROUND Eosinophilic granulomatosis with polyangiitis (EGPA) is a systemic necrotizing vasculitis that occurs in patients with asthma, nasal disease, blood and tissue eosinophilia, and extrapulmonary manifestations. OBJECTIVE The aim of our study was to assess the clinical, functional, and inflammatory status of upper and lower airways in 37 patients with EGPA, examined 6.4 ± 4.7 years after diagnosis, when they were in partial or complete remission from systemic involvement while on treatment with low-dose oral corticosteroids as maintenance therapy. METHODS All patients performed spirometry and were assessed for bronchial hyperreactivity, sputum eosinophilia, and fractional exhaled nitric oxide; asthma control was evaluated according to the Global Initiative for Asthma (GINA) guidelines and the Asthma Control Test. Markers of systemic disease were compared with the data available at diagnosis. Nasal involvement was evaluated by using the Sino-Nasal Outcome Test, nasal endoscopy, and nasal cytology. The impact on the quality of life was evaluated by using generic (36-item short form health survey) and organ-specific questionnaires. RESULTS At the time of the study visit, almost all patients were receiving low-dose oral corticosteroids and immunomodulating drugs, but only 50% were being treated with inhaled corticosteroids. Although low systemic disease activity was documented in the large majority of patients, poorly controlled asthma and rhinosinusitis with eosinophilic airway inflammation were demonstrated in almost all patients. A significant correlation was found between sputum and blood eosinophilia and between fractional exhaled nitric oxide and asthma control. The 36-item short form health survey questionnaire results significantly correlated with the Sino-Nasal Outcome Test but not with the Asthma Control Test. CONCLUSIONS Systemic treatment controls systemic involvement in EGPA, but not asthma and nasal diseases, which negatively affects patients' quality of life.
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Affiliation(s)
- Manuela Latorre
- Respiratory Pathophysiology Unit, Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy.
| | - Chiara Baldini
- Rheumatology Unit, University Hospital of Pisa, Pisa, Italy
| | | | - Pasquale Pepe
- Rheumatology Unit, University Hospital of Pisa, Pisa, Italy
| | - Federica Novelli
- Respiratory Pathophysiology Unit, Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
| | - Alessandro Celi
- Respiratory Pathophysiology Unit, Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
| | - Elena Bacci
- Respiratory Pathophysiology Unit, Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
| | - Silvana Cianchetti
- Respiratory Pathophysiology Unit, Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
| | - Federico L Dente
- Respiratory Pathophysiology Unit, Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
| | | | - Pierluigi Paggiaro
- Respiratory Pathophysiology Unit, Cardio-Thoracic and Vascular Department, University Hospital of Pisa, Pisa, Italy
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Tsurikisawa N, Oshikata C, Tsuburai T, Sugano S, Nakamura Y, Shimoda T, Tamama S, Adachi K, Horita A, Saito I, Saito H. Th17 cells reflect colon submucosal pathologic changes in active eosinophilic granulomatosis with polyangiitis. BMC Immunol 2015; 16:75. [PMID: 26714881 PMCID: PMC4696253 DOI: 10.1186/s12865-015-0138-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 12/22/2015] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Chronic eosinophilic pneumonia (CEP) or eosinophilic gastroenteritis (EG), or both, with asthma precede the onset of eosinophilic granulomatosis with polyangiitis (EGPA) in half of all EGPA patients. It is not known what determines whether patients with CEP or with EG following asthma will develop EGPA. METHODS We studied 17 EGPA patients and 12 patients with CEP but without EGPA. We assayed serum ICAM-1, VCAM-1, and VEGF, and the percentage of peripheral blood CD4(+) T cells producing IL-17 (Th17 cells), at both onset and remission. We also examined the numbers of submucosal eosinophils and the basement membrane-to-crypt and crypt-to-crypt distance to evaluate edema in the colon submucosa at onset and remission in EGPA and at onset in CEP. RESULTS Nine of 12 (75.0%) CEP patients had symptoms or endoscopic findings. Colonic submucosal eosinophil counts and edema in EGPA at onset were greater than at remission or in CEP at onset. Th17 cells (%) and serum ICAM-1 levels at onset were greater in EGPA than in CEP. In EGPA, peripheral blood Th17 cells (%) were significantly correlated with serum ICAM-1 level, colonic submucosal eosinophil count, and degree of edematous change; inversely correlated with serum VEGF level; but not correlated with VCAM-1 level. CONCLUSIONS Eosinophilia and colonic submucosal edematous change were greater in EGPA than in CEP. The mechanism of vasculitis in EGPA appears related to increases in serum Th17 cell numbers and ICAM-1 levels and decreases in VEGF levels.
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Affiliation(s)
- Naomi Tsurikisawa
- Departments of Allergy and Respirology, Sagamihara, Kanagawa, Japan.
| | - Chiyako Oshikata
- Departments of Allergy and Respirology, Sagamihara, Kanagawa, Japan.
| | - Takahiro Tsuburai
- Departments of Allergy and Respirology, Sagamihara, Kanagawa, Japan.
| | - Satoshi Sugano
- Department of Medical Gastroenterology, Sagamihara, Kanagawa, Japan.
| | - Yoko Nakamura
- Department of Medical Gastroenterology, Sagamihara, Kanagawa, Japan.
| | - Takuya Shimoda
- Department of Medical Gastroenterology, Sagamihara, Kanagawa, Japan.
| | - Shunpei Tamama
- Department of Medical Gastroenterology, Sagamihara, Kanagawa, Japan.
| | - Ken Adachi
- Department of Medical Gastroenterology, Sagamihara, Kanagawa, Japan.
| | - Ayako Horita
- Department of Diagnostic Pathology, Sagamihara, Kanagawa, Japan.
| | - Ikuo Saito
- Department of Diagnostic Pathology, Sagamihara, Kanagawa, Japan.
| | - Hiroshi Saito
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku, Sagamihara, Kanagawa, 252-0392, Japan.
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Watts RA, Mahr A, Mohammad AJ, Gatenby P, Basu N, Flores-Suárez LF. Classification, epidemiology and clinical subgrouping of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis. Nephrol Dial Transplant 2015; 30 Suppl 1:i14-22. [PMID: 25805746 DOI: 10.1093/ndt/gfv022] [Citation(s) in RCA: 153] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
It is now 25 years since the first European studies on vasculitis--the anti-neutrophil cytoplasmic antibody (ANCA) standardization project. Over that period of time, there have been major developments in the classification of the vasculitides, which has permitted the conduct of high-quality epidemiology studies. Studying the epidemiology of rare diseases such as the ANCA-associated vasculitides (AAV) poses considerable challenges to epidemiologists. The first is the need for a clear definition of a case with good differentiation from similar disorders. The second is case capture. The vasculitides are rare, and therefore, a large population is required to determine the incidence and prevalence, and this poses questions of feasibility. A large population increases the risk of incomplete case detection but permits a reasonable number of cases to be collected in a practicable time frame, whereas a smaller population requires a much longer time frame to collect the necessary cases, which may also not be feasible. Statistical methods of capture-recapture analysis enable estimates to be made of the number of missing cases. The third is case ascertainment. The AAV are virtually always managed in secondary care, and therefore, hospital-based case ascertainment may be appropriate. Fourthly, the rarity of the conditions makes prospective case-control studies investigating risk factors difficult to conduct because the population size required to achieve statistical confidence is in excess of that which is readily available. Thus, much of the data on risk factors are derived from retrospective studies with inherent potential bias.
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Affiliation(s)
- Richard A Watts
- Department of Rheumatology, Ipswich Hospital and Norwich Medical School, University of East Anglia, Norwich, UK
| | - Alfred Mahr
- Department of Internal Medicine, Hospital Saint-Louis, University Paris 7, Paris, France
| | - Aladdin J Mohammad
- Department of Clinical Sciences, Rheumatology, Lund University, Lund, Sweden Vasculitis and Lupus Clinic, Addenbrooke's Hospital, Cambridge, UK
| | - Paul Gatenby
- Department of Immunology, The Canberra Hospital and Medical School Australian National University, Canberra, Australia
| | - Neil Basu
- Musculoskeletal Collaboration (Epidemiology Group), University of Aberdeen, Aberdeen, UK
| | - Luis Felipe Flores-Suárez
- Primary Systemic Vasculitides Clinic, Instituto Nacional de Enfermedades Respiratorias, Mexico City, Mexico
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Abstract
Churg-Strauss angiitis is a rare vasculitic disorder affecting small- and medium-sized blood vessels. It is clinically characterized by the presence of a wide spectrum of multisystem organ involvement, with allergic rhinitis, asthma and peripheral blood eosinophilia as the most typical manifestations. The authors describe 2 cases of Churg-Strauss angiitis from an urban community of Southern Louisiana, exhibiting an atypical presentation with myocardial ischemia and cerebrovascular complications. Epidemiology, pathophysiology and clinical overview are presented. The therapeutic management is also discussed.
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Abstract
Churg-Strauss syndrome (CSS), alternatively known as eosinophilic granulomatosis with polyangiitis (EGPA), was first described in 1951 by Churg and Strauss as a rare disease characterized by disseminated necrotizing vasculitis with extravascular granulomas occurring exclusively among patients with asthma and tissue eosinophilia. EGPA is classified as a small-vessel vasculitis associated with antineutrophil cytoplasmic antibodies (ANCAs) and the hypereosinophilic syndromes (HESs) in which vessel inflammation and eosinophilic proliferation are thought to contribute to organ damage. Although still considered an idiopathic condition, EGPA is classically considered a Th2-mediated disease. Emerging clinical observations provide compelling evidence that ANCAs are primarily and directly involved in the pathogenesis of AASVs, although recent evidence implicates B cells and the humoral response as further contributors to EGPA pathogenesis. EGPA has traditionally been described as evolving through a prodromic phase characterized by asthma and rhino-sinusitis, an eosinophilic phase marked by peripheral eosinophilia and organ involvement, and a vasculitic phase with clinical manifestations due to small-vessel vasculitis. The American College of Rheumatology defined the classification criteria to distinguish the different types of vasculitides and identified six criteria for EGPA. When four or more of these criteria are met, vasculitis can be classified as EGPA. The French Vasculitis Study Group has identified five prognostic factors that make up the so-called five-factor score (FFS). Patients without poor prognosis factors (FFS=0) have better survival rates than patients with poor prognosis factors (FFS≥1). The treatment of patients with CSS must be tailored to individual patients according to the presence of poor prognostic factors. A combination of high-dose corticosteroids and cyclophosphamide is still the gold standard for the treatment of severe cases, but the use of biological agents such as rituximab or mepolizumab seems to be a promising therapeutic alternative.
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Tsurikisawa N, Saito H, Oshikata C, Tsuburai T, Ishiyama M, Mitomi H, Akiyama K. An increase of CD83+ dendritic cells ex vivo correlates with increased regulatory T cells in patients with active eosinophilic granulomatosis and polyangiitis. BMC Immunol 2014; 15:32. [PMID: 25174446 PMCID: PMC4159546 DOI: 10.1186/s12865-014-0032-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 08/08/2014] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Eosinophilic granulomatosis with polyangiitis (EGPA) is a rare disease characterized by the presence of allergic granulomatosis and necrotizing vasculitis with eosinophilic infiltration. The etiology of EGPA is unknown. Dendritic cells (DCs) are not only critical for the induction of primary immune responses; they may also be important for the induction of immunological tolerance and the regulation of the type of T-cell-mediated immune response. To investigate whether DC maturation is associated with EGPA disease status, we examined the relationship between the maturation of DCs and the differentiation of regulatory T (Treg) cells in EGPA patients. We exposed the CD14+ blood monocytes of 19 patients with EGPA in remission or relapse to stimulation with GM-CSF and IL-4 for 6 d and lipopolysaccharide for 24 h to obtain mature CD83+ DCs and immature CD206+ DCs. Using immunohistochemistry, we examined four patients for the presence of CD83+ and CD206+ DCs in the lung at the onset of EGPA. RESULTS The percentage of CD83+ cells among DCs differentiated from CD14+ monocytes was lower for EGPA patients in relapse than in remission. The percentage of CD83+ DCs was inversely correlated with the percentage of CD206+ DCs and was significantly correlated with the numbers of naturally occurring CD4+ regulatory Treg (nTreg; FOXP3+CD4+) cells and inducible Treg (iTreg; CD4+CD25+ T cells producing IL-10 or TGF-β) cells but not the number of eosinophils. The percentage of CD206+ DCs was significantly inversely correlated with the percentages of nTreg and iTreg cells but not the number of eosinophils. Immunohistochemistry revealed both CD206+ DCs and CD83+ DCs in alveoli and interstitial spaces at the onset of EGPA. CONCLUSION The maturation of DCs from monocytes was related to disease activity in patients with EGPA. Increased CD83+ DCs in EGPA patients may induce the differentiation of iTreg and nTreg cells, thereby suppressing inflammation and disease activity.
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Affiliation(s)
- Naomi Tsurikisawa
- />Departments of Allergy and Respirology, 18-1 Sakuradai, Minami-ku Sagamihara, Kanagawa 252-0392 Japan
| | - Hiroshi Saito
- />Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku Sagamihara, Kanagawa 252-0392 Japan
| | - Chiyako Oshikata
- />Departments of Allergy and Respirology, 18-1 Sakuradai, Minami-ku Sagamihara, Kanagawa 252-0392 Japan
| | - Takahiro Tsuburai
- />Departments of Allergy and Respirology, 18-1 Sakuradai, Minami-ku Sagamihara, Kanagawa 252-0392 Japan
| | - Miyako Ishiyama
- />Laboratory Medicine, Kanagawa Rehabilitation Hospital, 516 Nanasawa Atsugi, Kanagawa, 243-0121 Japan
| | - Hiroyuki Mitomi
- />Department of Surgical and Molecular Pathology, Dokkyo Medical University, 880 Kitakobayashi, Shimotsuga-gun, Mibu-machi, Tochigi 321-0293 Japan
| | - Kazuo Akiyama
- />Departments of Allergy and Respirology, 18-1 Sakuradai, Minami-ku Sagamihara, Kanagawa 252-0392 Japan
- />Clinical Research Center for Allergy and Rheumatology, National Hospital Organization, Sagamihara National Hospital, 18-1 Sakuradai, Minami-ku Sagamihara, Kanagawa 252-0392 Japan
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15
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Sorino C, Agati S, Milani G, Maspero A. Acute painful paraplegia in a 49-year-old man with allergic asthma. BMJ Case Rep 2014; 2014:bcr-2013-201589. [PMID: 24980994 DOI: 10.1136/bcr-2013-201589] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
We present a case of a 49-year-old man, with a 10-year history of bronchial asthma and nasal polyposis, who developed acutely painful paraplegia and paresthesias. Laboratory data showed elevated blood creatine kinase levels and myoglobinuria, which were diagnostic for rhabdomyolysis but only partially explained the neurological deficit. Electrophysiological studies revealed a sensorimotor neuropathy of multiple mononeuritis type. The patient also had leucocytosis with marked eosinophilia and antineutrophil cytoplasmic autoantibodies. Bronchial biopsies showed inflammatory infiltrates with a prevalence of eosinophils. All these findings led us to diagnose eosinophilic granulomatosis with polyangiitis, a systemic vasculitis with almost constant respiratory tract involvement and good response to corticosteroid treatment. This can also affect other organs including the nervous system, while muscular involvement is unusual. Some diseases deserve attention in differential diagnosis. Histology can support the diagnosis which remains essentially clinical. Steroid sparing agents/immunosuppressants are suggested for extensive disease.
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Affiliation(s)
- Claudio Sorino
- Division of Pulmonology, S Anna Hospital, San Fermo della Battaglia (CO), Italy; DIBIMIS, University of Palermo, Italy
| | - Sergio Agati
- Division of Pulmonology, S Anna Hospital, San Fermo della Battaglia (CO), Italy
| | - Giuseppe Milani
- Division of Pulmonology, S Anna Hospital, San Fermo della Battaglia (CO), Italy
| | - Annarosa Maspero
- Division of Pulmonology, S Anna Hospital, San Fermo della Battaglia (CO), Italy
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16
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Abstract
Thromboangiitis obliterans, or Buerger disease, is a chronic nonatherosclerotic endarteritis manifesting as inflammation and thrombosis of distal extremity small and medium-sized arteries resulting in relapsing episodes of distal extremity ischemia. Takayasu arteritis is a rare syndrome characterized by inflammation of the aortic arch, pulmonary, coronary, and cerebral vessels, presenting with cerebrovascular symptoms, myocardial ischemia, or upper extremity claudication in young, often female, patients. Kawasaki disease is a small- and medium-vessel acute systemic vasculitis of young children, with morbidity and mortality stemming from coronary artery aneurysms. Microscopic polyangiitis, Churg-Strauss syndrome, and Wegener granulomatosis are systemic small-vessel vasculitides, affecting arterioles, capillary beds and venules, and each presenting with variable effects on the pulmonary, renal and gastrointestinal systems.
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Affiliation(s)
- William Wu
- Division of Vascular Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
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17
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Man With Sudden Onset of Bilateral Flank Pain. Ann Emerg Med 2012; 60:e7-8. [DOI: 10.1016/j.annemergmed.2012.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Revised: 03/29/2012] [Accepted: 03/29/2012] [Indexed: 11/16/2022]
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18
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Santiago Rivero D. Enfrentamiento de las vasculitis primarias. REVISTA MÉDICA CLÍNICA LAS CONDES 2012. [DOI: 10.1016/s0716-8640(12)70331-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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19
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Abstract
INTRODUCTION This review addresses the pulmonary manifestations of the vasculitides, with a focus on diagnostic modalities. Haemorrhagic presentations (usually associated with nephritis: the pulmonary-renal syndrome) are the most common vasculitic cause of early death. AREAS COVERED The diagnostic modalities in the pulmonary vasculitides are reviewed, with a focus on primary systemic vasculitis. A literature search of original research and review articles on pulmonary vasculitides was undertaken using the PubMed database. EXPERT OPINION Small-vessel anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis, especially granulomatosis with polyangiitis (Wegener's granulomatosis) are the most frequent causes of pulmonary vasculitis and typically present as nodules, alveolar infiltrates (haemorrhagic or not), cavities or tracheobronchial stenosis. Lung involvement is less common in large-vessel vasculitis when pulmonary vascular abnormalities can be seen. No single test is pathogonomonic and diagnosis requires integration of clinical, laboratory, imaging and histological findings. Treatment follows similar regimens to other vasculitic presentations, with glucocorticoids in conjunction with immunosuppressive agents, and management of intercurrent sepsis and the increased risk of cardiovascular and thromboembolic events. Prompt diagnosis and intensive treatment of pulmonary vasculitis is essential to improve early mortality and long-term outcomes.
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Affiliation(s)
- Alina Casian
- Addenbrooke's Hospital, Vasculitis and Lupus Clinic , Cambridge , UK
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20
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Abstract
Churg-Strauss syndrome is an uncommon disease of unknown cause described initially by Churg and Strauss in 1951. Even though it was initially thought to be a variant of polyarteritis nodosa, its pathological, clinical, and laboratory features show that it is related to the small vessel vasculitides, and it is now classified as an antineutrophil cytoplasmic antibody-associated vasculitis. The presence of asthma, usually of adult onset, along with other allergic symptoms, peripheral and tissue eosinophilia, is specific to this disease. These features usually help clinicians distinguish it from other types of small vessel vasculitis and should alert clinicians about its presence. Two different clinical subtypes defined by the presence of antineutrophil cytoplasmic antibodies recently have been recognized. Recent advances in the treatment and pathophysiology of Churg-Strauss syndrome are reviewed in this article.
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21
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Oumerzouk J, Jouehari A, Semlali A, Hssaini Y, Bourazza A. [Chronic polyradiculoneuropathy revealing a Churg-Strauss syndrome]. Presse Med 2012; 41:1155-8. [PMID: 22342231 DOI: 10.1016/j.lpm.2012.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 12/17/2011] [Accepted: 01/04/2012] [Indexed: 11/18/2022] Open
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22
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Gross O, Tschernatsch M, Bräu ME, Hempelmann G, Birklein F, Kaps M, Madlener K, Blaes F. Increased seroprevalence of parvovirus B 19 IgG in complex regional pain syndrome is not associated with antiendothelial autoimmunity. Eur J Pain 2012; 11:237-40. [PMID: 16545972 DOI: 10.1016/j.ejpain.2006.01.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2005] [Revised: 11/01/2005] [Accepted: 01/27/2006] [Indexed: 11/18/2022]
Abstract
The etiology of complex regional pain syndrome (CRPS) is unclear yet. Recently autoantibodies and antecedent viral infections have been discussed to be involved in the pathogenesis of CRPS. We investigated sera from 39 CRPS patients and healthy controls for parvovirus B19 IgG and the occurrence of antiendothelial autoantibodies (AECA). CRPS patients showed a higher seroprevalence of parvovirus B19 IgG than controls (p < 0.01). All CRPS 2 patients were positive. 10.2% of the CRPS patients and 10.0% of the controls had AECA (n.s.) and AECA were not associated with parvovirus B19 seropositivity. Our findings suggest the involvement of parvovirus B19, but not autoantibody-mediated endothelial cell damage, in the pathogenesis of CRPS.
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Affiliation(s)
- Oliver Gross
- Department of Neurology, Justus-Liebig-University, Am Steg 14, 35385 Giessen, Germany
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23
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Abstract
Polyarteritis nodosa is a systemic necrotizing vasculitis that affects small- and medium-sized arteries. Liver involvement in patients with polyarteritis nodosa has been described, and ranges from asymptomatic elevation of aminotransferases to hepatic aneurysm rupture. We describe the case of a patient with type 1 autoimmune hepatitis and compensated liver cirrhosis who developed classic polyarteritis nodosa, complicated with cytomegalovirus and repeated urinary tract infections. After a long bedridden hospitalization, the patient's condition was stabilized. She is currently in good health, with well-controlled blood pressure, and stable kidney and liver function. To our knowledge, this is the first case report in the literature with concurrent appearance of both diseases.
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24
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Oku T, Okamoto T, Sakai T, Miseki T, Kubo Y, Yamakawa A, Sugata H. A case of polyarteritis nodosa complicated by rectal cancer. Clin J Gastroenterol 2010; 3:296-300. [DOI: 10.1007/s12328-010-0184-7] [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: 04/07/2010] [Accepted: 10/03/2010] [Indexed: 01/18/2023]
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25
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26
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Abstract
Vasculitis or angiitis refers to a group of inflammatory disorders of the blood vessels that cause structural damage to the affected vessel, including thickening and weakening of the vessel wall, narrowing of its lumen, and, usually, vascular necrosis. Systemic vasculitis is classified according to the vessel size and histopathologic and clinical features. Vasculitides with small vessel involvement typically include Henoch-Schönlein purpura and cryoglobulinemia. Polyarteritis nodosa and Wegener granulomatosis are small- and medium-sized vessel vasculitides, whereas temporal arteritis and Takayasu arteritis involve large vessels. In this article, the authors provide a review of the neurologic presentations of the major systemic vasculitides.
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27
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Desai PC, Kenner ES, Moffett BK. Computed tomography angiogram in diagnosis of Churg-Strauss vasculitis. J Rheumatol 2009; 36:2851-2. [PMID: 19966202 DOI: 10.3899/jrheum.090695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Brandt HRC, Arnone M, Valente NYS, Sotto MN, Criado PR. [Medium and large vessel vasculitis]. An Bras Dermatol 2009; 84:55-67. [PMID: 19377760 DOI: 10.1590/s0365-05962009000100008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2008] [Accepted: 12/26/2008] [Indexed: 12/26/2022] Open
Abstract
Vasculitis comprises a broad group of syndromes characterized by inflammation and necrosis on the walls of blood vessels, resulting in narrowing or occlusion of the lumen. The distribution of involved blood vessel varies considerably and serves as the basis for one classification of vasculitic syndromes: large vessels (Takayasu arteritis, giant cell arteritis); medium and small muscular arteries (polyarteritis nodosa, Churg-Strauss syndrome, Wegener's granulomatosis, vasculitis in rheumatic diseases); and small vessels ("hypersensitivity" vasculitis, Henoch-Schonlein purpura, microscopic polyangiitis, cryoglobulinemia). This article reviews medium and large vessel vasculitis and current treatment options; it also presents a comprehensive approach to diagnosing and treating patients with suspected cutaneous vasculitis.
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29
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Churg-Strauss syndrome presenting as myositis following unaccustomed exercise. J Clin Neurosci 2009; 16:1232-3. [PMID: 19497752 DOI: 10.1016/j.jocn.2008.11.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2008] [Revised: 10/17/2008] [Accepted: 11/04/2008] [Indexed: 11/21/2022]
Abstract
A 68-year-old woman with a 4 year history of bronchial asthma developed marked myalgia in the extremities following exercise to which she was unaccustomed. Examination on admission, 11 days after onset, revealed myalgia, muscular weakness and cutaneous hemorrhagic bullae. Blood tests revealed eosinophilia (9160/mm(3)) and elevation of creatinine kinase and C-reactive protein. Muscle biopsy in the quadriceps femoris showed small vessel vasculitis and eosinophilic infiltration. Skin biopsy revealed leukocytoclastic vasculitis with neutrophilic and eosinophilic infiltration and fibrinoid necrosis. We diagnosed her as having Churg-Strauss syndrome (CSS). Corticosteroid treatment relieved her symptoms and resulted in normalization of the laboratory test results. Myositis is rare as an initial manifestation of CSS. The previous studies on immunological changes after eccentric exercise suggest that unaccustomed exercise could induce an increase in the serum level of interleukin-6 and trigger the onset of CSS.
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30
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Sano F, Miyamae T, Nakagishi Y, Kinoshita J, Ozawa R, Imagawa T, Mori M, Asayama M, Yokota S. [Gastrointestinal involvement and renal infarction in a boy with classic polyarteritis nodosa diagnosed with 3D-computed tomography angiography]. NIHON RINSHO MEN'EKI GAKKAI KAISHI = JAPANESE JOURNAL OF CLINICAL IMMUNOLOGY 2008; 31:415-21. [PMID: 18974626 DOI: 10.2177/jsci.31.415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We report a case of classic polyarteritis nodosa complicated with renal infarction. A 14-year-old boy manifested fever, abdominal pain, watery and bloody diarrhea, and weight loss. Laboratory findings indicated anemia, increased levels of C-reactive protein, and erythrocyte sedimentation rate. Lower gastrointestinal endoscopic examination revealed multiple colorectal ulcerations, and histopathological findings were non-specific, suggesting gastrointestinal involvement of Behcet disease. The patient was referred to our hospital, and suspected to have vasculitis syndrome since the abnormal laboratory findings included persistently increased levels of FDP-E/fibrin monomer as well as inflammatory markers, and the extraordinary high excretion of beta 2-microglobulin, which indicated abrupt and massive expression of HLA class I molecule on endothelial cells due to interferon-gammanemia. To examine the site of vasculitis, 3D-CT angiography was applied to demonstrate bilateral renal infarction and renal artery microaneurysms. Together with the clinical, laboratory, and 3D-CT angiographic findings, he was finally diagnosed as having classic polyarteritis nodosa. After 12 month-course of intravenous cyclophosphamide pulses and prednisolone/azatioprine therapy, complete disappearances of inflammatory manifestations, and renal infarction and microaneurysms were documented. The diagnosis of classic polyarteritis nodosa is frequently delayed because both clinical symptoms and signs, and laboratory findings are not disease-specific, but early diagnosis and treatment are necessary to prevent serious organ damage. In addition to the precise estimation of laboratory findings such as inflammatory markers, and FDP-E/D-dimer/fibrin monomer, the newly developed 3D-CT angiography, a less invasive imaging technique, will be helpful to diagnose patients with classic polyarteritis nodosa, and intervene the disease progression with early and active treatment.
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Affiliation(s)
- Fumie Sano
- Department of Pediatrics, Yokohama City University
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31
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Tsurikisawa N, Saito H, Tsuburai T, Oshikata C, Ono E, Mitomi H, Akiyama K. Differences in regulatory T cells between Churg-Strauss syndrome and chronic eosinophilic pneumonia with asthma. J Allergy Clin Immunol 2008; 122:610-6. [PMID: 18586318 DOI: 10.1016/j.jaci.2008.05.040] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2007] [Revised: 04/03/2008] [Accepted: 05/22/2008] [Indexed: 11/16/2022]
Abstract
BACKGROUND Chronic eosinophilic pneumonia (CEP) with asthma precedes the onset of Churg-Strauss syndrome (CSS) in half of all patients with CSS. It is not known what determines whether patients with CEP after asthma will have CSS. OBJECTIVE We examined whether activation of regulatory T cells in patients with CEP inhibits CSS development and is otherwise involved in the mechanism of CSS disease. METHODS In patients with CSS (n = 38), CEP with asthma (n = 20), and general adult asthma (n = 108), we examined the number of CD4(+)CD25(+) T cells in peripheral blood, as well as levels of expression of the cytokines IL-2, IL-5, IL-10, and TGF-beta by CD4(+)CD25(+) T cells, CD4(+)CD25(-) T cells, or both. RESULTS At disease onset, patients with CSS, unlike patients with CEP, had significantly fewer CD4(+)CD25(+) T cells than patients with any step of asthma. CD4(+)CD25(+) T cells producing IL-10 were rarely detected in patients with CSS at disease onset or relapse, whereas the numbers of IL-10-producing T cells in patients with CEP were high at disease onset. There were fewer CD4(+)CD25(-) T cells producing IL-2 in patients with CSS before treatment than in patients with CEP at disease onset. The proportions of CD4(+)CD25(+) T cells producing IL-10 and CD4(+)CD25(-) T cells producing IL-2 in patients with CSS increased at remission. CONCLUSIONS Maintenance of the numbers of regulatory T cells in patients with CEP with asthma might inhibit CSS development through the action of cytokines, such as IL-10 and IL-2, produced by CD4(+)CD25(+) or CD4(+)CD25(-) T cells. This might be part of a mechanism that influences progression and prognosis in these diseases.
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Affiliation(s)
- Naomi Tsurikisawa
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan.
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32
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Rocchietti March M, Del Porto F, Proietta M, Laganà B, D'Amelio R, Aliberti G. Microscopic polyangiitis with sexual and reproductive system involvement: first description of a case. Intern Emerg Med 2008; 3:183-5. [PMID: 18273570 DOI: 10.1007/s11739-008-0109-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2006] [Accepted: 05/07/2007] [Indexed: 11/29/2022]
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34
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Lionaki S, Jennette JC, Falk RJ. Anti-neutrophil cytoplasmic (ANCA) and anti-glomerular basement membrane (GBM) autoantibodies in necrotizing and crescentic glomerulonephritis. Semin Immunopathol 2007; 29:459-74. [DOI: 10.1007/s00281-007-0093-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2007] [Accepted: 09/28/2007] [Indexed: 10/22/2022]
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35
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Kostina-O'Neil Y, Jirawuthiworavong GV, Podell DN, Lesser RL. Choroidal and Optic Nerve Infarction in Hepatitis C-Associated Polyarteritis Nodosa. J Neuroophthalmol 2007; 27:184-8. [PMID: 17895818 DOI: 10.1097/wno.0b013e31814b1d29] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A 39-year-old man presented with headache, weight loss, bilateral subdural hematomas, pansinusitis, and visual loss. The neuro-ophthalmologic examination disclosed deep choroidal lesions and bilateral optic disc edema. Orchiectomy for testicular torsion showed acute vasculitis consistent with polyarteritis nodosa (PAN). Polymerase chain reaction (PCR) testing revealed hepatitis C. This is the first reported case of PAN due to hepatitis C with early findings of choroidal and optic nerve infarction.
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Affiliation(s)
- Yanina Kostina-O'Neil
- Department of Ophthalmology and Visual Science, Yale University School of Medicine, New Haven, CT 06510, USA.
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36
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37
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Brillet PY, Brauner M. [Pulmonary imaging in ANCA-associated vasculitides]. Presse Med 2007; 36:907-12. [PMID: 17408914 DOI: 10.1016/j.lpm.2007.01.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2007] [Accepted: 01/24/2007] [Indexed: 01/15/2023] Open
Abstract
Imaging of ANCA-associated vasculitides principally shows nonsystematized alveolar opacities, predominantly central, that suggest alveolar hemorrhage, as well as uni- or multifocal alveolar opacities of variable interpretation, and nodules, including cavitary nodules. Other signs, observed more rarely on imaging, are interstitial lung diseases, tracheobronchial involvement, and pulmonary hypertension. The principal pulmonary signs of Wegener's granulomatosis are nodules and masses, sometimes cavitary, and areas of airspace consolidation that may or may not suggest diffuse alveolar hemorrhage. Except when the latter is present, the lesions correspond to necrotizing granulomatosis or organized pneumonia. The most frequent pulmonary signs of Churg-Strauss syndrome on computed tomography are ground glass areas or parenchymal consolidation in dispersed bands or with a predominantly subpleural distribution that expresses eosinophilic interstitial and alveolar infiltration. Alveolar hemorrhage is the most common expression of microscopic polyangiitis.
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Affiliation(s)
- Pierre-Yves Brillet
- Service de radiologie, Université Paris 13, UFR Bobigny, UPRES EA 2363 et Hôpital Avicenne (AP-HP), Bobigny, France
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38
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Abstract
Granulomas in the lung are common diagnostic problems encountered by pathologists. They occur in a wide range of pulmonary conditions, ranging from common entities to uncommon ones and including both infections and non-infectious diseases. This review summarizes the main histological features that help distinguish various granulomatous lung diseases. It concentrates on the most important and common entities that may be encountered and emphasizes helpful features in the differential diagnosis.
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Affiliation(s)
- O A El-Zammar
- Department of Pathology, SUNY Upstate Medical University, Syracuse, NY 13210, USA
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39
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Abstract
Polyarteritis nodosa (PAN) is a systemic vasculitis characterized by multi-organ involvement with protean manifestations. We evaluated the clinical features of PAN in Korea. Twenty-seven patients were diagnosed as PAN at Seoul National University Hospital between January 1990 and July 2003. The male-to-female ratio was 1.7:1 and mean age at onset (+/-SD) was 47.4+/-20 yr. Their presenting features at diagnosis were similar to those reported previously, i.e., myalgia, muscle weakness or leg tenderness (70%), fever (52%), weight loss >4 kg (44%), skin rash (44%), peripheral edema (33%), abdominal pain (33%), and arthralgia/arthritis (30%). However, the prevalence of testicular pain or tenderness was higher (24%) than reported previously and only three (11.5%) had HBsAg positivity without liver enzyme elevation. Nine patients (33%) had a five-factor score (FFS) of 2. Fourteen patients (52%) responded to treatment, 2 patients relapsed and 4 died within 1 yr of diagnosis. During a median follow-up of 55.5 months, three of the four PAN-related deaths had an initial FFS of 2. The clinical features of PAN were not significantly different from those reported previously. However, testicular pain or tenderness was more frequent and patients with a high FFS tended to have a poorer prognosis.
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Affiliation(s)
- Young Deok Bae
- Division of Rheumatology, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Hyo Jin Choi
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jung Chan Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jeong Jin Park
- Division of Rheumatology, Department of Internal Medicine, Gyeongsang National University, Jinju, Korea
| | - Yun Jong Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Eun Bong Lee
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Yeong Wook Song
- Division of Rheumatology, Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
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40
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Sánchez R, Aparicio JR, Baeza T, Calero Y. Capsule endoscopy diagnosis of intestinal involvement in a patient with Churg-Strauss syndrome. Gastrointest Endosc 2006; 63:1082-4. [PMID: 16733139 DOI: 10.1016/j.gie.2006.01.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2005] [Accepted: 01/02/2006] [Indexed: 02/08/2023]
Affiliation(s)
- Rosario Sánchez
- Department of Internal Medicine, Digestive Endoscopy Unit, Hospital General Universitario de Alicante, 03010 Alicante, Spain
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41
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Abstract
Patients with multi-system rheumatic conditions may have disease affecting the central and peripheral nervous systems. Early assessment is often helpful in averting the development of serious complications, which in some conditions can be prevented by the prompt institution of treatment. We review the spectrum of neurological disease in patients with a rheumatological diagnosis. The wide variety of associated neurological complications is discussed in the context of specific rheumatic conditions, varying from spinal cord involvement in rheumatoid arthritis, to neuropsychiatric involvement in systemic lupus erythematosus and neurological sequelae in vasculitic disorders. We discuss diagnostic criteria and recommended management options (where available), and describe the role of new tools such as functional brain imaging in the diagnosis and monitoring of disease. We also discuss the potential for development of neurological complications from the use of anti-rheumatic drugs.
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Affiliation(s)
- N Sofat
- Department of Rheumatology, Northwick Park Hospital, Watford Road, Harrow, Middlesex HA1 3UJ, UK.
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Samarkos M, Loizou S, Vaiopoulos G, Davies KA. The Clinical Spectrum of Primary Renal Vasculitis. Semin Arthritis Rheum 2005; 35:95-111. [PMID: 16194695 DOI: 10.1016/j.semarthrit.2005.05.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND OBJECTIVES The vasculitides are potentially severe and often difficult to diagnose syndromes. Many forms of vasculitis may involve the kidneys. This review will focus on the clinical and histopathological aspects of renal involvement in the systemic vasculitides. METHODS We searched the MEDLINE database using as key terms the MeSH terms and textwords for different forms of vasculitis and for renal involvement, creating a database of more than 2200 relevant references. RESULTS The frequency of renal involvement in vasculitis varies among different syndromes. It is more frequent in Wegener's granulomatosis and microscopic polyarteritis, while it is uncommon to rare in other forms of vasculitis such as Behçet's disease and relapsing polychondritis. The vessels affected include the renal artery in Takayasu arteritis, medium-size renal parenchymal artery in classic polyarteritis nodosa, and glomerular involvement in Wegener's granulomatosis and microscopic polyarteritis. The clinical expression of renal vasculitis depends on the size of the affected vessels and includes renovascular hypertension, isolated nonnephrotic proteinuria, interstitial nephritis, and glomerulonephritis, which can be rapidly progressive. Diagnosis is established by a combination of history, clinical manifestations, laboratory findings (eg, urine sediment, urine protein, antineutrophil cytoplasmic antibodies), imaging techniques (renal angiography, especially when there is a suspicion of medium-to-large vessel disease, and chest radiograph), and finally, renal biopsy. Prognosis varies from unfavorable in the rapidly progressive glomerulonephritis of microscopic polyarteritis, which can lead to renal failure, chronic dialysis, and renal transplantation, to benign, as in the case of Henoch Schonlein purpura, in which the majority of patients recover. CONCLUSIONS The manifestations and prognosis of renal vasculitis range widely. Renal involvement greatly influences prognosis and dictates the need for early and prompt immunosuppressive therapy. Thus, the clinician should be alert for the timely diagnosis and treatment of renal vasculitis.
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Affiliation(s)
- Michael Samarkos
- 5th Department of Internal Medicine, Evangelismos Hospital, Athens, Greece.
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Papaioannides D, Korantzopoulos P, Bouropoulos C, Latsi P, Fotinou M, Orphanidou D. Microscopic Polyangiitis Complicated by the Development of Prostate Cancer and Flutamide-induced Hepatitis. Int Urol Nephrol 2005; 37:515-20. [PMID: 16307333 DOI: 10.1007/s11255-005-2093-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
We report a case of a 65-year-old man with microscopic polyangiitis who developed prostate cancer and gastric adenocarcinoma after prolonged oral use of cyclophosphamide. Acute hepatitis with jaundice and marked increase in aminotranferases occurred after 6 months of flutamide treatment for metastatic prostate carcinoma. It is suggested that patients with vasculitis or other autoimmune disorders should avoid prolonged use of cyclophosphamide and other cytotoxic drugs in order to minimize long-term adverse effects, of which the risk of cancer is by far the most important. In patients on flutamide treatment, careful monitoring of flutamide administration with repeated liver function tests should be undertaken, and the drug must be immediately discontinued in patients with abnormal results to avoid progression of liver injury.
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Affiliation(s)
- D Papaioannides
- Department of Medicine, Arta General Hospital, Arta, Greece.
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Barbas CSV, Borges EDR, Antunes T. Vasculites pulmonares: quando suspeitar e como fazer o diagnóstico. J Bras Pneumol 2005. [DOI: 10.1590/s1806-37132005000700004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
As vasculites pulmonares primárias são caracterizadas por processo inflamatório na parede dos vasos pulmonares que leva a isquemia e hemorragia pulmonar com as conseqüentes expressões clínicas e radiológicas. As vasculites pulmonares primárias são acompanhadas de expressão sistêmicas cutâneas, em nervos periféricos, rins, seios da face, olhos e ouvidos, além do trato gastrintestinal, e sistemas cardíaco e nervoso central. O diagnóstico é feito através da associação das informações clínicas, radiológicas e anatomopatológicas. O tratamento com corticosteróides e imunossupressores deve ser instituído precocemente e apresenta altas taxas de remissão.
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Resten A, Maitre S, Musset D. CT imaging of peripheral pulmonary vessel disease. Eur Radiol 2005; 15:2045-56. [PMID: 15906039 DOI: 10.1007/s00330-005-2740-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2004] [Revised: 02/14/2005] [Accepted: 02/25/2005] [Indexed: 01/15/2023]
Abstract
The diseases concerning the small pulmonary vessels are difficult to diagnose. Pathologic findings are rarely limited to the small vessels, and a continuum between the involvement of small and large vessels is frequent. Moreover, small vessels can be affected by various disease entities with overlapping radiologic features and a wide spectrum of clinical manifestations. Nevertheless, these various entities can be easily separated into two different groups by imaging techniques, particularly by computed tomography: obstructive and inflammatory diseases. Radiologic findings of obstructive diseases are relatively constant, dominated by the manifestation of pulmonary hypertension. In contrast, radiologic manifestations of inflammatory diseases are often florid and nonspecific. After a recall of the classification of small vessel diseases and the imaging techniques, we show the computed tomography features of the principal diseases involving the small pulmonary vessels by classifying them in these two principal groups.
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Affiliation(s)
- Arnaud Resten
- Service de Radiologie, Hôpital Antoine Béclère, 157 rue de la Porte de Trivaux, 92140, Clamart, France
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Cackett P, Singh J. Churg–Strauss syndrome in association with proliferative retinopathy. Eye (Lond) 2005; 20:394-6. [PMID: 15818387 DOI: 10.1038/sj.eye.6701871] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Abstract
This article reviews the current use of the wide variety of imaging modalities now available, presenting the imaging features of common and important causes of acute and chronic rheumatic disorders including juvenile idiopathic arthritis, spondyloarthropathies/enthesitis-related arthritis, sepsis, autoimmune diseases, vasculitis, and osteoporosis.
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Affiliation(s)
- Paul Babyn
- Department of Diagnostic Imaging, Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, M5G 1X8 Canada.
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Marten K, Schnyder P, Schirg E, Prokop M, Rummeny EJ, Engelke C. Pattern-Based Differential Diagnosis in Pulmonary Vasculitis Using Volumetric CT. AJR Am J Roentgenol 2005; 184:720-33. [PMID: 15728589 DOI: 10.2214/ajr.184.3.01840720] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Katharina Marten
- Department of Radiology, Klinikum rechts der Isar, Technical University Munich, Ismaningerstrasse 22, Munich 81675, Germany.
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Marten K, Hansell DM. Imaging of macrophage-related lung diseases. Eur Radiol 2005; 15:727-41. [PMID: 15633061 DOI: 10.1007/s00330-004-2554-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2004] [Revised: 10/12/2004] [Accepted: 10/18/2004] [Indexed: 01/28/2023]
Abstract
Macrophage-related pulmonary diseases are a heterogeneous group of disorders characterized by macrophage accumulation, activation or dysfunction. These conditions include smoking-related interstitial lung diseases, metabolic disorders such as Niemann-Pick or Gaucher disease, and rare primary lung tumors. High-resolution computed tomography abnormalities include pulmonary ground-glass opacification secondary to infiltration by macrophages, centrilobular nodules or interlobular septal thickening reflecting peribronchiolar or septal macrophage accumulation, respectively, emphysema caused by macrophage dysfunction, and honeycombing following macrophage-related lung matrix remodeling.
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Affiliation(s)
- Katharina Marten
- Department of Radiology, Royal Brompton Hospital, Sydney Street, London, SW3 6NP, UK
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Magro CM, Nuovo G, Ferri C, Crowson AN, Giuggioli D, Sebastiani M. Parvoviral infection of endothelial cells and stromal fibroblasts: a possible pathogenetic role in scleroderma. J Cutan Pathol 2004; 31:43-50. [PMID: 14675284 DOI: 10.1046/j.0303-6987.2003.0143.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Systemic sclerosis (SSc) is a connective tissue disease (CTD) which differs from other CTDs by progressive irreversible fibrosis in lung, kidney, skin, and heart. It has a worse prognosis compared to several other CTDs. The pathogenesis may reflect a humorally mediated microangiopathy in concert with the overproduction of collagen triggered by immune-mediated cytokine production. Having previously demonstrated parvovirus B19 (B19) DNA in bone marrow and skin biopsies of SSc patients in the absence of B19 viremia, we sought to further elucidate a role for B19 in the pathogenesis of SSc. DESIGN Twelve patients who fulfilled American College of Rheumatology criteria for a diagnosis of SSc were encountered. Ten were serologically screened for B19 infection. Solution phase polymerase chain reaction (PCR) for B19 DNA was performed on skin tissue from six patients, and in all biopsies, reverse transcriptase in situ PCR (RT in situ PCR) for B19 and tumor necrosis factor (TNF)-alpha mRNA was performed. B19 viral protein (VP2) expression was sought by immunohistochemistry and correlated to PCR findings and to light microscopy of hematoxylin and eosin-stained sections. Frozen tissue was also available on five of the patients. Two control groups were assessed for B19 and TNF expression comprising one with irrelevant primers and the other representing 18 cases of inflammatory skin lesions where the etiology was known and unrelated to B19 infection. In addition, frozen and paraffin-embedded tissues procured from skin lesions unrelated to B19 infection were assessed for B19 genome. In all cases, pretreatment with RNase was also performed to verify that any positive signal was indeed RNA based. RESULTS Diffuse SSc was seen in seven patients, and limited disease in five. All patients had an antinuclear antibody--specifically, an antinucleolar, anticentromere, and/or anti-Scl 70 antibody. Eleven of the 12 had lung involvement, whereas eight patients had myocardial disease. Of 12 patients tested serologically, nine had B19-specific antibodies, which included immunoglobulin M (IgM)-specific antibodies in two cases. Solution phase PCR showed B19 DNA in the skin in three cases and in the bone marrow in three cases, including two in whom skin-based B19 DNA was observed. In all cases, RT in situ PCR demonstrated B19 and TNF-alpha mRNA in endothelia, fibroblasts, mast cells, and perivascular inflammatory cells. Immunohistochemistry to assess VP2 was either negative or equivocal. Immunofluorescent studies revealed prominent deposition of C5b-9 within the cutaneous vasculature from biopsies of all patients tested. The control samples were negative for B19 and TNF RNA and DNA. CONCLUSIONS Parasitism of endothelia and fibroblasts by B19 with resultant enhanced TNF-alpha expression may be of pathogenetic importance in SSc even in the absence of demonstrable viremia. The vascular deposition of C5b-9 suggests a role for humoral immunity possibly induced by a state of endothelial neoantigenicity evoked by virally mediated cell injury. Treatment strategies include anti-viral therapy, including in the context of intravenous gamma-globulin and anti-TNF therapy.
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MESH Headings
- Adult
- Aged
- Capsid Proteins/metabolism
- Complement Membrane Attack Complex/analysis
- DNA, Viral/analysis
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Endothelial Cells/virology
- Female
- Fibroblasts/metabolism
- Fibroblasts/pathology
- Fibroblasts/virology
- Fluorescent Antibody Technique, Direct
- Humans
- Male
- Middle Aged
- Parvoviridae Infections/complications
- Parvoviridae Infections/pathology
- Parvovirus B19, Human/genetics
- Parvovirus B19, Human/pathogenicity
- RNA, Messenger/metabolism
- RNA, Viral/analysis
- Reverse Transcriptase Polymerase Chain Reaction
- Scleroderma, Diffuse/metabolism
- Scleroderma, Diffuse/pathology
- Scleroderma, Diffuse/virology
- Scleroderma, Limited/metabolism
- Scleroderma, Limited/pathology
- Scleroderma, Limited/virology
- Stromal Cells/metabolism
- Stromal Cells/pathology
- Stromal Cells/virology
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
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Affiliation(s)
- Cynthia M Magro
- Department of Pathology, The Ohio State University, Columbus, OH, USA
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