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1.
Acta Dermatovenerol Alp Pannonica Adriat ; 33(2): actaapa.2024.10, 2024 04 12.
Artigo em Inglês | MEDLINE | ID: mdl-38606648

RESUMO

Multiple autoimmune syndrome is a manifestation of polyautoimmunity with the co-occurrence of three or more autoimmune diseases in a single patient. We report a unique case of a 55-year-old female patient that presented with four autoimmune diseases: autoimmune thyroid disease, vitiligo, morphea, and lichen sclerosus. She was evaluated for progression of morphea and lichen sclerosus, and we confirmed histopathological overlapping of these two diseases in the same lesion. We discuss the increasing prevalence of autoimmune diseases and similar case reports on dermatological polyautoimmunity.


Assuntos
Doenças Autoimunes , Líquen Escleroso e Atrófico , Esclerodermia Localizada , Doenças da Glândula Tireoide , Vitiligo , Feminino , Humanos , Pessoa de Meia-Idade , Esclerodermia Localizada/complicações , Esclerodermia Localizada/patologia , Líquen Escleroso e Atrófico/patologia , Vitiligo/complicações , Doenças Autoimunes/complicações , Doenças da Glândula Tireoide/complicações
2.
BMJ Case Rep ; 17(3)2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38479828

RESUMO

Overlap syndromes are diseases that meet the criteria of two or more rheumatic diseases. In this case report, a woman in her 20s presented with a constellation of symptoms, including skin thickening, Raynaud's phenomenon, hypertension, absent pulse in both lower limbs with bilateral renal artery bruit. The antinuclear antibody profile revealed Scl-70 positivity. CT thorax identified early interstitial lung disease, and nailfold capillaroscopy showed severe capillary loss. CT angiogram features were suggestive of Takayasu arteritis. Notably, there have been only four documented cases of systemic sclerosis coexisting with Takayasu arteritis, highlighting the rarity of this overlap syndrome. The diagnosis of overlap syndrome was made after a thorough history recording and clinical examination. In the presence of bilateral renal artery stenosis, managing the scleroderma renal crisis may be challenging . This patient received treatment with mycophenolate mofetil and oral corticosteroids, aiming to address both systemic sclerosis and Takayasu arteritis effectively.


Assuntos
Doenças Autoimunes , Doenças do Tecido Conjuntivo , Doenças Pulmonares Intersticiais , Esclerodermia Localizada , Escleroderma Sistêmico , Arterite de Takayasu , Feminino , Humanos , Arterite de Takayasu/diagnóstico , Arterite de Takayasu/diagnóstico por imagem , Escleroderma Sistêmico/complicações , Escleroderma Sistêmico/diagnóstico , Doenças do Tecido Conjuntivo/complicações , Esclerodermia Localizada/complicações , Doenças Pulmonares Intersticiais/complicações , Doenças Autoimunes/complicações
4.
J Med Case Rep ; 18(1): 32, 2024 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-38225664

RESUMO

BACKGROUND: Systemic scleroderma (SSc) is an insidious autoimmune connective tissue disorder with multiorgan involvement. Renal involvement is one of the important causes of morbidity and mortality in scleroderma; however, nephrotic syndrome is reported rarely in association with SSc. We present a patient with SSc who developed focal segmental glomerulosclerosis (FSGS) as a complication of scleroderma. CASE PRESENTATION: A 59 year old Caucasian female patient, with a known history of diffuse systemic sclerosis from 8 years, presented to our clinic with symptoms of anasarca and weight gain. Her physical examination was unremarkable except for periorbital and extremity edema. Her biochemistry assessment revealed decreased serum albumin levels and elevated serum creatinine levels. A renal biopsy was performed, which showed histopathological patterns of FSGS type of nephrotic syndrome. After administration of high doses of steroid and rituximab in the course of her treatment for 6 months, her symptoms and proteinuria were improved without the occurrence of scleroderma renal crises. CONCLUSION: SSc is a complex multisystemic autoimmune disorder. SRC is the most prominent renal involvement in SSc, but other renal pathologies may also occur. Each patient should be precisely investigated since managing these renal conditions can differ significantly. Nephrotic syndrome is a rare complication of SSc, which could be managed with prompt diagnosis and steroid administration.


Assuntos
Doenças Autoimunes , Glomerulosclerose Segmentar e Focal , Síndrome Nefrótica , Esclerodermia Localizada , Escleroderma Sistêmico , Feminino , Humanos , Pessoa de Meia-Idade , Síndrome Nefrótica/etiologia , Síndrome Nefrótica/complicações , Glomerulosclerose Segmentar e Focal/complicações , Glomerulosclerose Segmentar e Focal/tratamento farmacológico , Rim/patologia , Proteinúria/etiologia , Escleroderma Sistêmico/complicações , Escleroderma Sistêmico/tratamento farmacológico , Esclerodermia Localizada/complicações , Esclerodermia Localizada/tratamento farmacológico , Esteroides/uso terapêutico
5.
Clin Dermatol ; 42(1): 9-16, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37913844

RESUMO

Collagen vascular disease is a heterogeneous group of autoimmune diseases that affect multiple organ systems. Sjögren syndrome, dermatomyositis, scleroderma, systemic lupus erythematosus, and sarcoidosis are collagen vascular diseases that often present with characteristic cutaneous manifestations. Although less known, various ocular manifestations that affect both external and internal structures of the eye can also be seen in these conditions. Multidisciplinary management between dermatologists and ophthalmologists is essential in the early diagnosis and management of collagen vascular diseases affecting both the skin and eye. In part II of our series, we discuss the ocular manifestations, diagnosis, and therapeutic options of dermatomyositis, scleroderma, and sarcoidosis.


Assuntos
Doenças Autoimunes , Doenças do Tecido Conjuntivo , Dermatomiosite , Lúpus Eritematoso Sistêmico , Sarcoidose , Esclerodermia Localizada , Escleroderma Sistêmico , Doenças Vasculares , Humanos , Dermatomiosite/complicações , Dermatomiosite/diagnóstico , Esclerodermia Localizada/complicações , Esclerodermia Localizada/diagnóstico , Esclerodermia Localizada/terapia , Sarcoidose/complicações , Sarcoidose/diagnóstico , Pálpebras , Colágeno , Escleroderma Sistêmico/complicações , Escleroderma Sistêmico/diagnóstico
7.
J Clin Rheumatol ; 30(1): e18-e22, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-37983683

RESUMO

BACKGROUND/OBJECTIVE: Few studies have investigated associations between rheumatologic serology patterns and different interstitial lung disease (ILD) patterns. METHODS: We present novel findings of a historic cohort study (n = 454) with data collected from 2011 to 2021 within our hospital system. In this institutional review board-approved study, data regarding rheumatologic serologies and ILD patterns were noted based on chart review in patients with scleroderma. The Kruskal-Wallis rank sum and χ2 tests were used for statistical analysis. RESULTS: Results showed a statistically significant association between anti-U1 snRNP with lymphoid interstitial pneumonia, which has not been previously described. CONCLUSIONS: We demonstrated novel serologic associations with ILD patterns, which have important clinical implications. More robust and high-powered studies are needed to elucidate the role of serologic testing and their association with ILD phenotypes.


Assuntos
Artrite Reumatoide , Doenças Pulmonares Intersticiais , Esclerodermia Localizada , Escleroderma Sistêmico , Humanos , Estudos de Coortes , Estudos Retrospectivos , Doenças Pulmonares Intersticiais/diagnóstico por imagem , Doenças Pulmonares Intersticiais/etiologia , Anticorpos Antinucleares , Esclerodermia Localizada/complicações , Artrite Reumatoide/complicações , Escleroderma Sistêmico/complicações , Escleroderma Sistêmico/diagnóstico , Pulmão
8.
Pediatr Dermatol ; 41(1): 100-103, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37495233

RESUMO

Morphea is an uncommon inflammatory and fibrosing disorder that has a polymorphous clinical presentation. We report two cases of morphea developing as an isotopic response after a preceding benign skin disease, accompanied by a review of the literature. This case series highlights the importance of return to care recommendations for benign skin conditions such lichen striatus and pigmented purpuric dermatoses due to the rare possibility of subsequent morphea development.


Assuntos
Eczema , Exantema , Ceratose , Esclerodermia Localizada , Dermatopatias Papuloescamosas , Dermatopatias , Humanos , Esclerodermia Localizada/complicações , Esclerodermia Localizada/diagnóstico , Prurido/complicações , Dermatopatias/complicações , Eczema/complicações , Ceratose/complicações
9.
Arthritis Rheumatol ; 76(1): 68-77, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37488962

RESUMO

OBJECTIVES: We examined whether an array of scleroderma autoantibodies associates with risk of cancer and could be useful tools for risk stratification. METHODS: Scleroderma cancer cases and scleroderma controls without cancer from the Johns Hopkins Scleroderma Center and the University of Pittsburgh Scleroderma Center were studied. Sera were assayed by Lineblot and enzyme-linked immunosorbent assay (ELISA) for autoantibodies against centromere, topoisomerase 1, RNA polymerase (POLR) 3, PM/Scl, Th/To, NOR90, U3 RNP, Ku, Ro52, U1RNP, and RNPC3. Logistic regression models were constructed to examine whether distinct autoantibodies associated with overall cancer at any time and cancer-associated scleroderma (cancer occurring three years before and after scleroderma onset). The effects of having more than one autoantibody on cancer were further examined using random forest analysis. RESULTS: A total of 676 cases and 687 controls were studied. After adjusting for relevant covariates, anti-POLR3 (odds ratio [OR] 1.47, 95% confidence interval [CI] 1.03-2.11) and monospecific anti-Ro52 (OR 2.19, 95% CI 1.29-3.74) were associated with an increased overall cancer risk, whereas anticentromere (OR 0.69, 95% CI 0.51-0.93) and anti-U1RNP (OR 0.63, 95% CI 0.43-0.93) were associated with lower risk. When examining risk of cancer-associated scleroderma, these immune responses remained associated with increased or decreased risk: anti-POLR3 (OR 2.28, 95% CI 1.33-3.91), monospecific anti-Ro52 (OR 2.58, 95% CI 1.05-6.30), anticentromere (OR 0.39, 95% CI 0.20-0.74), and anti-U1RNP (OR 0.32, 95% CI 0.11-0.93). Anti-Ro52 plus anti-U1RNP or anti-Th/To was associated with decreased cancer risk compared with anti-Ro52 alone. CONCLUSIONS: These data suggest that five distinct scleroderma immune responses, alone or in combination, may be useful tools to stratify the risk of cancer for scleroderma patients. Further study examining cancer risk in autoantibody subgroups relative to the general population is warranted.


Assuntos
Neoplasias , Esclerodermia Localizada , Escleroderma Sistêmico , Humanos , Autoanticorpos , Esclerodermia Localizada/complicações , Progressão da Doença , Modelos Logísticos , RNA Polimerase III , Escleroderma Sistêmico/complicações , Proteínas Nucleares , Proteínas de Ligação a RNA
10.
Georgian Med News ; (340-341): 227-231, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37805902

RESUMO

Atrophoderma of Pasini and Pierini is a rare, considered benign, skin disease characterized by single or multiple asymptomatic atrophic plaques. Lesions can occur everywhere on the body with the trunk being the most often reported affected site. It appears in the second or third decade of life and affects mostly the female population, with male to female ratio of 1:6, commonly of white European descent. Different risk factors were described in the literature - genetic predisposition, infections with Epstein-Barr virus, varicella zoster and Borrelia burgdorferi, vaccinations, local trauma and more. Since the pandemic with COVID-19, skin manifestations after the viral infection with COVID-19 were reported. After a thorough search of the existing medical literature, we believe, we present the first case of a rapid progression of Atrophoderma of Pasini and Pierini after COVID-19 infection. Due to its similarity to morphea in some aspects, the condition is often misdiagnosed, and the proper treatment is often delayed. Sometimes the dilemma "Is it atrophoderma Pasini-Pierini or is it in fact morphea?" stays, but the exact histopathological verification and the "diagnostic clues" which can be used during the examination stage, are usually enough to diagnose the condition. We present a 63-year-old female with a rapid progression of atrophoderma of Pasini and Pierini after a COVID-19 infection. The lesion that she presented with was single, asymptomatic, with central hypopigmentation and slight atrophy, with a smooth, shiny surface and ivory color, and peripheral hyperpigmentation, measured 18x5cm, without the presence of perilesional erythema. The patient was initially diagnosed clinically with localized scleroderma (morphea) and treated with hydroxychloroquine 200 mg once daily for a 5-year period without improvement. Years later two biopsies from different lesional sites were taken, resulting in absence of sclerosis and dermal atrophy, but - reduction in the thickness of the dermis with fragmentation and hyalinization of collagen fibers forming a parallel orientation, dilated vascular vessels of small caliber and reduced number of skin appendages, confirming the diagnosis of atrophoderma Pasini-Pierini. The patient's therapy was switched to methotrexate with good therapeutic response. Often, the two conditions - morphea and atrophoderma of Pasini and Pierini can be mistaken due to its clinical similarity and sometimes coexistence. Therefore, we will shortly review the existing literature with key points on the similarities and differences.


Assuntos
COVID-19 , Infecções por Vírus Epstein-Barr , Esclerodermia Localizada , Dermatopatias , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Esclerodermia Localizada/complicações , Esclerodermia Localizada/diagnóstico , Esclerodermia Localizada/tratamento farmacológico , Bulgária , Infecções por Vírus Epstein-Barr/patologia , Herpesvirus Humano 4 , Dermatopatias/patologia , Pele/patologia , Eritema/patologia , Atrofia/patologia
11.
Acta Dermatovenerol Croat ; 31(1): 45-47, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37843092

RESUMO

Dear Editor, Silicone is a hydrophobic polymer containing silicon. Silicon is an essential compound of soft tissue proteoglycans. Reports about morphea and other autoimmune connective tissue disorders in association with silicone implants have stimulated the discussion of a possible link between the two, such as immunological cross-reactivity of silicone and connective tissue components (1). A number of case reports suggested a possible link to adjuvant autoimmune syndrome (2), morphea of the breast (3-5), and systemic scleroderma (6-8), among others. One study measured tissue silicon levels in women with silicone breast implants with and without symptoms or signs and compared these data with women who had either a saline breast implant or no augmentation at all. The authors detected higher levels of silicon in capsular tissue of patients with silicone implants, independent of the presence of any symptoms or signs (9,10). The conclusion was that there is no evidence of an association between silicone implants and autoimmune connective tissue disorders. Three other clinical trials investigating the role of silicone implants and induction of autoimmune connective tissue disorders also failed to find an association between the two (11-13). We report the case of a 32-year-old female patient who developed morphea of the breasts after silicone implants for augmentation after risk-reducing mastectomy for Cowden syndrome. She presented with pronounced capsule fibrosis of the implants. With a delay of several years, an ill-defined slightly hyperpigmented area developed on the breasts and ventral chest (Figure 1). The lesion was analyzed by dermoscopy (Figure 2), which found mild erythema, reduced vessels, and white areas (ill-defined dull white globules, fibrotic beams). A skin biopsy was taken. Histopathological analysis showed a normal epidermal layer, minor papillary edema, and some vascular ectasias in the papillary dermis and upper corium (Figure 3). There was mild perivascular inflammatory infiltrate of the deep dermal vascular plexus, composed of lymphocytes and monocytes with some plasma cells (Figure 4). Elastic fibers seemed unaffected (Figure 5). The diagnosis of an early morphea of the edematous-inflammatory stage was established. Treatment with topical corticosteroids and UVB-311 nm irradiation was recommended. Morphea of the breasts is an uncommon disorder. It may occur after radiotherapy of breast cancer, after silicone augmentation, or without any known cause (14-16). A meta-analysis found an increased risk for morphea/scleroderma, with a relative risk between 1.30 to 2.13 and an odds ratio for case control studies of 1.68 (17). The US FDA Breast Implant Approval Study evaluated almost 100,000 female patients with breast implants. An increased risk of Sjögren's syndrome, scleroderma, and rheumatoid arthritis was reported (18). We could not find any reference of an association between capsular fibrosis and morphea of the breast, although both represent fibrotic disorders. In conclusion, it seems possible that there is a link between morphea of the breast and chest as described herein and silicone breast implants, which is supported by epidemiological studies. However, a direct causal relationship is hard to demonstrate with a single case.


Assuntos
Doenças Autoimunes , Neoplasias da Mama , Esclerodermia Localizada , Feminino , Humanos , Adulto , Esclerodermia Localizada/complicações , Silício/análise , Neoplasias da Mama/complicações , Neoplasias da Mama/patologia , Neoplasias da Mama/cirurgia , Mastectomia/efeitos adversos , Silicones/efeitos adversos , Fibrose
13.
Eur J Dermatol ; 33(3): 235-240, 2023 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-37594328

RESUMO

BACKGROUND: Stiff skin syndrome (SSS) is a rare disease characterized by sclerosis of the skin. Cases of both widespread and segmental SSS have been reported. OBJECTIVES: To report the clinical and histopathological characteristics of a large series of SSS. MATERIALS & METHODS: We retrospectively analysed the clinical and histopathological characteristics of widespread and segmental SSS collected from a dermatology department. We also compared histopathology between segmental SSS and morphea. RESULTS: Thirty-one cases, including three widespread SSS and 28 segmental SSS, were collected. Skin lesions of widespread SSS generally showed skin sclerosis concentrating over the lumbar, buttocks, thighs, proximal part of limbs, and shoulders with specific abnormal gait and posture. Skin lesions of segmental SSS generally showed sclerotic plaques involving the thigh, lumbar area and buttocks, associated with hypertrichosis, hyperpigmentation and a cobblestone appearance. Segmental SSS did not typically cause joint limitation or serious physical discomfort. Histopathologically, SSS showed proliferation of fibroblasts and sclerosis of collagen in the dermis or subcutaneous tissue. Compared with morphea, SSS showed more prominent proliferation of fibroblasts and completely lacked lymphocyte infiltration. CONCLUSION: Segmental SSS represents the major variant of SSS. Histopathologically, SSS shows proliferation of fibroblasts, sclerosis and an absence of inflammation.


Assuntos
Esclerodermia Localizada , Dermatopatias Genéticas , Humanos , Esclerodermia Localizada/complicações , Esclerose , Estudos Retrospectivos
14.
Pediatr Dermatol ; 40(4): 606-609, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37317938

RESUMO

Morphea is a rare fibrosing disorder with a highly variable disease course, which can complicate management. Here, we present a prospective cohort study describing the current treatments used in the management of pediatric-onset morphea and assessing responses to systemic and topical therapies. Most patients demonstrated inactive disease by 1 year, regardless of treatment, though recurrences were common in our cohort overall (39%). Our results support the need for continuous monitoring of all children with morphea following the completion of treatment, including topical treatment, due to high rates of disease relapse.


Assuntos
Esclerodermia Localizada , Criança , Humanos , Esclerodermia Localizada/diagnóstico , Esclerodermia Localizada/tratamento farmacológico , Esclerodermia Localizada/complicações , Estudos Prospectivos , Doenças Raras/complicações , Administração Tópica
15.
Retin Cases Brief Rep ; 17(4): 406-409, 2023 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-37364200

RESUMO

BACKGROUND/PURPOSE: To report a case of uveal effusion associated with localized scleroderma because of scleral collagen fibrosis. Partial-thickness sclerectomy treatment was successful in acquiring the resolution of the uveal effusion. METHODS: Case report. RESULTS: A 44-year-old Chinese woman with known localized scleroderma visited the retinal clinic complaining of insidious onset blurring of vision in both eyes for 8 months. The best-corrected visual acuity was 20/200. Ophthalmoscopy revealed apparent inferior bullous serous retinal detachments in the right eye. Optical coherence tomography showed subretinal fluid and folds of the retinal pigment epithelium layer in both eyes. B-scan ultrasonographic image of the right eye confirmed a 360-degree serous retinal detachment in the right eye accompanied with increased thickness of the ocular wall. Ultrasound biomicroscopy of the anterior segment detected a shallow ciliary body detachment in the right eye. Fluorescein angiography and indocyanine green angiography demonstrated the leopard-spot pattern in all phases. Partial-thickness sclerectomy treatment was successful in acquiring the resolution of the uveal effusion. Histopathologic examinations of the sclera flaps revealed scleral collagen fibrosis. CONCLUSION: This clinicopathologic report first describes a patient with localized scleroderma and scleral collagen fibrosis, resulting in uveal effusion that responded to partial-thickness sclerectomy.


Assuntos
Descolamento Retiniano , Esclerodermia Localizada , Doenças da Úvea , Feminino , Humanos , Adulto , Esclera/cirurgia , Doenças da Úvea/diagnóstico , Doenças da Úvea/cirurgia , Esclerodermia Localizada/complicações , Esclerodermia Localizada/diagnóstico , Descolamento Retiniano/diagnóstico , Descolamento Retiniano/etiologia , Descolamento Retiniano/patologia , Tomografia de Coerência Óptica , Angiofluoresceinografia , Colágeno
18.
Autoimmun Rev ; 22(6): 103330, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37031831

RESUMO

Systemic sclerosis is a rare autoimmune vasculopathy associated with dysregulated innate and adaptive immunity that leads to generalized systemic fibrosis. Renal involvement occurs in a significant proportion of systemic sclerosis patients, and is associated with worse outcome. Scleroderma renal crisis (SRC) is the most studied and feared renal complication described in systemic sclerosis. However, with the emergence of ACE inhibitors and better management, the mortality rate of SRC has significantly decreased. Renal disease in systemic sclerosis offers a wide array of differential diagnoses that may be challenging for the clinician. The spectrum of renal manifestations in systemic sclerosis ranges from an isolated decrease in glomerular filtration rate, increased intrarenal arterial stiffness, and isolated proteinuria due to SRC to more rare manifestations such as association with antiphospholipid antibody nephropathy and ANCA-associated vasculitis. The changes observed in the kidneys in systemic sclerosis are thought to be due to a complex interplay of various factors, including renal vasculopathy, as well as the involvement of the complement system, vasoactive mediators such as endothelin-1, autoimmunity, prothrombotic and profibrotic cytokines, among others. This literature review aims to provide an overview of the main renal manifestations in systemic sclerosis by discussing the most recent epidemiological and pathophysiological data available and the challenges for clinicians in making a diagnosis of renal disease in patients with systemic sclerosis.


Assuntos
Injúria Renal Aguda , Esclerodermia Localizada , Escleroderma Sistêmico , Humanos , Rim , Escleroderma Sistêmico/diagnóstico , Injúria Renal Aguda/diagnóstico , Injúria Renal Aguda/etiologia , Inibidores da Enzima Conversora de Angiotensina , Esclerodermia Localizada/complicações
19.
BMJ Case Rep ; 16(3)2023 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-36931690

RESUMO

Systemic sclerosis is a complex multisystem connective tissue disease resulting in fibrosis of the skin and internal organs. Exposure to corticosteroids can trigger scleroderma renal crisis, a life-threatening complication of the disease. Autoimmune disease following infection with COVID-19 is being increasingly recognised. The mechanisms of post-COVID-19 autoimmunity are likely multifactorial, involving immune dysregulation, molecular mimicry and the development of cross-reactive antibodies. There are currently only two reported cases of systemic sclerosis occurring post-COVID-19 infection.We present the case of a female patient who developed systemic sclerosis post-COVID-19 infection. Following exposure to corticosteroids, the patient developed scleroderma renal crisis complicated by thrombotic microangiopathy, seizures and acute renal failure. Despite an antibody profile not typically associated with renal crisis (anti-topoisomerase positive, anti-RNA-polymerase III negative), the patient developed recurrent renal crisis with repeated exposure to corticosteroid therapy, highlighting the risk of steroid use in all patients with systemic sclerosis.


Assuntos
Injúria Renal Aguda , COVID-19 , Hipertensão Renal , Esclerodermia Localizada , Escleroderma Sistêmico , Humanos , Feminino , COVID-19/complicações , Escleroderma Sistêmico/complicações , Escleroderma Sistêmico/tratamento farmacológico , Injúria Renal Aguda/etiologia , Hipertensão Renal/complicações , Esclerodermia Localizada/complicações , Anticorpos
20.
Ann Diagn Pathol ; 63: 152098, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36610314

RESUMO

Lichen sclerosus (LS) is a cutaneous disease of unknown etiology that often involves the vulva or foreskin but also can affect extragenital sites. Regardless of the anatomic site, the histomorphology and presumably pathogenesis are similar. Perhaps a clue to the pathophysiology of LS lies in its frequent association with morphea, specifically, when occurring in an extragenital context. In our experience a striking feature evident in established lichen sclerosis (LS) is one of superficial vascular drop out whereby residual vessels exhibited endothelial cell necrosis and microvascular basement membrane zone thickening, the latter reflective of antecedent episodes of microvascular injury. We sought to understand the pathophysiology that underlies the distinct vascular changes and in doing so, shed light on the pathogenesis of LS. We examined 44 cases of LS over a period of 2019 to 2021. We were able to obtain past medical histories in 34 of the 44 cases. Regarding pathological assessment, the predominant focus was on microvascular changes. We assessed the role of C5b-9 mediated vascular injury in the pathogenesis of the vasculopathy and enhanced type I interferon signaling in vessels given the morphologic semblance to the select interferonopathy syndromes, namely fibrosing dermatomyositis and Kohlmeier Degos disease. We examined the expression of CMV DNA and protein based on prior observations in an earlier study that isolated early protein expression in the microvasculature in the setting of LS and scleroderma. From a clinical perspective, the most striking association was an older age at the time of diagnosis (mean age of 62 years and median age of 61.5 years) and the presence of vascular comorbidities of diabetes, hypertension, and hyperlipidemia in almost 80% of cases. All cases showed significant microvascular changes in the superficial corium with the most frequent findings being those of significant basement membrane zone reduplication and vascular drop out. A number of cases showed prominent microvascular deposits of C5b-9 in the zone of hyalinizing fibrosis or subjacent to the discernible table of fibroplasia in the absence of enhanced type I interferon signaling. In no case were there viral cytopathic changes associated with CMV affecting the endothelium. The studies that encode CMV DNA or protein did not show a significant role for CMV reactivation in endothelium in the majority of the studied cases. It is concluded that the pathophysiology of LS includes a microvascular injury syndrome within the papillary dermis. The mechanism of endothelial cell injury is complement mediated at least in part and could reflect an adaptive immune response targeting endothelium indicative of classic complement pathway activation when coexisting with morphea or occurring in younger individuals. A non-immune based endothelial dysfunction and complement mediated injury unrelated to antibody driven classic complement pathway activation are more likely pathogenetically in the setting of certain diseases like diabetes mellitus and hypertension. Vascular drop out can be explained by the diminished endothelial progenitor pool needed to repopulate the damaged microvessels in certain settings like hypertension and diabetes.


Assuntos
Infecções por Citomegalovirus , Hipertensão , Interferon Tipo I , Líquen Escleroso e Atrófico , Esclerodermia Localizada , Adulto , Humanos , Pessoa de Meia-Idade , Complexo de Ataque à Membrana do Sistema Complemento , Infecções por Citomegalovirus/complicações , Hipertensão/complicações , Líquen Escleroso e Atrófico/complicações , Líquen Escleroso e Atrófico/patologia , Esclerodermia Localizada/complicações , Esclerodermia Localizada/patologia
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