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Hofmann AG, Deinsberger J, Oszwald A, Weber B. The Histopathology of Leg Ulcers. Dermatopathology (Basel) 2024; 11:62-78. [PMID: 38390849 PMCID: PMC10885126 DOI: 10.3390/dermatopathology11010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/24/2024] Open
Abstract
Ulcerations of the lower extremities are a frequently encountered problem in clinical practice and are of significant interest in public health due to the high prevalence of underlying pathologies, including chronic venous disease, diabetes and peripheral arterial occlusive disease. However, leg ulcers can also present as signs and symptoms of various rare diseases and even as an adverse reaction to drugs. In such cases, correct diagnosis ultimately relies on histopathological examination. Apart from the macroscopic presentation, patient history and anatomic location, which are sometimes indicative, most ulcers have very distinct histopathological features. These features are found in different layers of the skin or even associated vessels. In this narrative review, we discuss and highlight the histopathological differences of several types of leg ulcers that can contribute to efficient and accurate diagnosis.
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Affiliation(s)
- Amun Georg Hofmann
- Department of Dermatology, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Julia Deinsberger
- Department of Dermatology, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - André Oszwald
- Department of Pathology, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Benedikt Weber
- Department of Dermatology, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
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Julanon N, Chularojanamontri L, Sitthinamsuwan P, Sukpanichnant S. Multiple facial ulcers as a presentation of localized granulomatosis with polyangiitis associated with IgG4-related disease. Clin Exp Dermatol 2020; 46:610-613. [PMID: 33259062 DOI: 10.1111/ced.14503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/27/2020] [Indexed: 12/30/2022]
Affiliation(s)
- N Julanon
- Departments of, Department of, Dermatology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - L Chularojanamontri
- Departments of, Department of, Dermatology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - P Sitthinamsuwan
- Department of, Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - S Sukpanichnant
- Department of, Pathology, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
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Akiyama M, Zeisbrich M, Ibrahim N, Ohtsuki S, Berry GJ, Hwang PH, Goronzy JJ, Weyand CM. Neutrophil Extracellular Traps Induce Tissue-Invasive Monocytes in Granulomatosis With Polyangiitis. Front Immunol 2019; 10:2617. [PMID: 31798577 PMCID: PMC6874157 DOI: 10.3389/fimmu.2019.02617] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 10/21/2019] [Indexed: 12/20/2022] Open
Abstract
Objective: Granulomatosis with polyangiitis (GPA) is a multi-organ vasculitic syndrome typically associated with neutrophil extracellular trap (NET) formation and aggressive tissue inflammation. Manifestations in head and neck (H&N) GPA include septal perforations, saddle-nose deformities, bony erosions of the orbital and sinus walls, middle ear damage and epiglottitis, indicative of bone, cartilage, and connective tissue destruction. Whether H&N-centric lesions engage disease pathways distinctive from the ischemic tissue damage in the lungs, kidneys, skin, and peripheral nerves is unknown. We have compared inflammatory responses triggered by neutrophilic NETs in patients with H&N GPA and systemic GPA (sGPA). Methods: Neutrophils and monocytes were isolated from the peripheral blood of patients with H&N GPA, sGPA, and age/gender matched healthy individuals. Neutrophil NETosis was induced. NETs were isolated and cocultured with monocytes. Gene induction was quantified by RT-PCR, protein upregulation by flow cytometry. Tissue invasiveness of monocytes was measured in a 3D collagen matrix system. Expression of MMP-9 in tissue-residing macrophages was assessed by immunohistochemistry in tissue biopsies. Results: Neutrophils from H&N GPA patients showed more intense NETosis with higher frequencies of netting neutrophils (P < 0.001) and release of higher amounts of NETs (P < 0.001). Isolated NETs from H&N GPA functioned as an inducer of danger-associated molecular patterns in monocytes; specifically, alarmin S100A9. NET-induced upregulation of monocyte S100A9 required recognition of DNA. S100A9 release resulted in the induction of metalloproteinases, including MMP-9, and enabled monocytes to invade into extracellular matrix. Anti-MMP-9 treatment attenuated the tissue invasiveness of monocytes primed with NETs from H&N GPA patients. MMP-9-producing macrophages dominated the tissue infiltrates in naso-sinal biopsies from H&N GPA patients. Conclusion: Distinct disease patterns in GPA are associated with differences in NET formation and NET content. H&N GPA patients with midline cartilaginous and bony lesions are highly efficient in generating NETs. H&N GPA neutrophils trigger the induction of the alarmin S100A9, followed by production of MMP-9, endowing monocytes with tissue-invasive capabilities.
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Affiliation(s)
- Mitsuhiro Akiyama
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Markus Zeisbrich
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Nour Ibrahim
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA, United States
| | - Shozo Ohtsuki
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Gerald J Berry
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, United States
| | - Peter H Hwang
- Department of Otolaryngology-Head and Neck Surgery, Stanford University, Stanford, CA, United States
| | - Jörg J Goronzy
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Cornelia M Weyand
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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Marzano AV, Raimondo MG, Berti E, Meroni PL, Ingegnoli F. Cutaneous Manifestations of ANCA-Associated Small Vessels Vasculitis. Clin Rev Allergy Immunol 2018; 53:428-438. [PMID: 28578472 DOI: 10.1007/s12016-017-8616-5] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Skin lesions are frequent manifestations of underlying systemic conditions, including systemic autoimmune vasculitis. In particular, anti-neutrophil cytoplasmic antibodies (ANCA) are associated with distinct forms of vasculitis characterized by inflammatory cell infiltration of the walls of small and medium-sized vessels leading to vascular destruction and tissue necrosis. ANCA-associated vasculitis is rare and systemic diseases, which can be classified based on different distribution of vascular inflammation and presence or absence of granulomatosis and asthma. Despite their diversities, ANCA-associated vasculitis, namely microscopic polyangiitis, granulomatosis with polyangiitis and eosinophilic granulomatosis with polyangiitis, can all display a broad variety of cutaneous manifestations, which can appear during the course of the disease or even as first sign at the time of onset. Different skin manifestations might coexist in the same patient and occur in different occasions during the course of the vasculitis. Thus, a deep knowledge of the spectrum of skin lesions as part of ANCA-associated vasculitis is mandatory for a correct diagnostic process, whenever cutaneous vasculitis is suspected. Due to this broad variety of manifestations, the diagnosis of skin involvement in ANCA-associated vasculitis is very challenging and it must be supported by a detailed medical history, accurate physical examination, specific histopathological analysis of skin biopsy and the presence of ANCA serology. In this review, we focus on the cutaneous manifestations that can develop in the context of ANCA-associated vasculitis, detailing the clinical features, the histopathological aspects as well as the direct immunofluorescence studies for each of the three conditions. Moreover, we acknowledged the differential diagnoses that must be ruled out in the diagnostic process and the main therapeutic approaches available for treatment of ANCA-associated vasculitis.
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Affiliation(s)
- Angelo Valerio Marzano
- Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Unità Operativa di Dermatologia, IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
| | - Maria Gabriella Raimondo
- Division of Rheumatology, ASST Pini, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
| | - Emilio Berti
- Dipartimento di Fisiopatologia Medico-Chirurgica e dei Trapianti, Unità Operativa di Dermatologia, IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Università degli Studi di Milano, Milan, Italy
| | - Pier Luigi Meroni
- Division of Rheumatology, ASST Pini, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy. .,Experimental Laboratory of Immunological and Rheumatologic Researches, IRCCS Istituto Auxologico Italiano, Cusano Milanino, Milan, Italy.
| | - Francesca Ingegnoli
- Division of Rheumatology, ASST Pini, Department of Clinical Sciences and Community Health, Università degli Studi di Milano, Milan, Italy
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Pyoderma gangrenosum-like ulcerations in granulomatosis with polyangiitis: two cases and literature review. Rheumatol Int 2018; 38:1139-1151. [PMID: 29721696 DOI: 10.1007/s00296-018-4035-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 04/26/2018] [Indexed: 12/16/2022]
Abstract
Granulomatosis with polyangiitis (GPA) is a systemic necrotizing small vessel vasculitis associated with circulating anti-neutrophil cytoplasmic antibodies (ANCAs). Skin manifestations, mostly represented by palpable purpura, papulonodular lesions and livedo reticularis, are present in up to 50% of the cases. Ulcerations with undermined, raised erythematous-violaceous border resembling pyoderma gangrenosum (PG) have rarely been reported as skin involvement in GPA. The presence of circulating ANCAs with a cytoplasmic labelling pattern, the involvement of internal organs, particularly of the lung, and the absence on histology of a mainly neutrophilic infiltrate in early phases of the cutaneous lesions may be regarded as clues to rule out true PG and confirm the diagnosis of GPA skin ulcerations simulating PG. Herein, we describe two paradigmatic cases of such a unique presentation of GPA and a literature review focusing on clinicopathological features of GPA presenting with PG-like ulcerations in the skin has been provided. Moreover, referring to the scenario observed in these two cases, an easy-to-use working approach for the differential diagnosis between the two conditions has also been proposed.
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Enlarging Ulcers in the Mouth and on the Back. Am J Dermatopathol 2015. [DOI: 10.1097/01.dad.0000462742.99381.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Candau A, Valenzuela B, Dean A, Alamillos FJ. Granulomatosis de Wegener con afectación de la mucosa oral como primera manifestación. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2014; 65:53-5. [DOI: 10.1016/j.otorri.2012.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2012] [Revised: 03/23/2012] [Accepted: 03/28/2012] [Indexed: 11/28/2022]
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Candau A, Valenzuela B, Dean A, Alamillos FJ. Wegener's Granulomatosis With Oral Mucosal Involvement as First Manifestation. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2014. [DOI: 10.1016/j.otoeng.2014.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Marzano AV, Vezzoli P, Berti E. Skin involvement in cutaneous and systemic vasculitis. Autoimmun Rev 2013; 12:467-76. [PMID: 22959234 DOI: 10.1016/j.autrev.2012.08.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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