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We discuss the case of a 60-year-old male who presented with ankle pain, a necrotic rash, and progressive weakness in both lower limbs and the right upper limb. An infectious workup of the skin lesions came back negative. Additionally, his kidney function tests indicated an acute kidney injury. This prompted investigations for vasculitis etiologies, which revealed a positive cytoplasmic antineutrophil cytoplasmic autoantibody (c-ANCA). His neurological deficits were also investigated, and imaging suggested embolic infarcts. Cardiac imaging showed valve vegetations and blood culture showed a lack of growth suggestive of a noninfective nature of these lesions. Based on all these findings, a kidney biopsy was obtained and demonstrated pauci-immune segmental vasculitis consistent with ANCA-associated glomerulonephritis. As such, the patient showed improvement with heavy pulse steroid and immunomodulator therapy. Although skin, heart, and CNS involvement have been previously reported with ANCA-associated vasculitis, it is rare, especially together, and can prove a diagnostic challenge. Therefore, it is important to consider vasculitis etiology in patients presenting similarly. In addition, this case highlights the overlapping clinical picture between infective endocarditis and vasculitis with valvular involvement, making differentiation between the two challenging.

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INTRODUCTION: Granulomatosis with polyangiitis (GPA), formerly termed Wegener's granulomatosis, is an autoimmune disease marked by necrotizing granulomatous inflammation and vasculitis affecting small-sized vessels. It commonly impacts the renal and respiratory systems. MATERIALS AND METHODS: This retrospective case series sampling conducted in a tertiary care hospital between May 2023 and April 2024 examined six newly diagnosed GPA patients who were proteinase 3 cytoplasmic-antinuclear cytoplasmic antibody (PR3 c-ANCA) positive and had concurrent respiratory infections. None of them had any prior immunosuppressive conditions. The age range was 18-47 years with a mean of 35.0 (standard deviation: 11.83). All the patients had pneumonia (N=6, 100%). Out of all, five had bacterial pneumonia (N=5, 83.3%) and one had tuberculous pneumonia (N=1, 16.7%). A high level of PR3 c-ANCA (>150 RU/mL) was noted in four patients (N=4, 66.7%). Common symptoms included dry cough (N=5, 83.3%), loss of weight and appetite (N=2, 33.3%), and fever (N=2, 33.3%). Three patients had otitis media and/or nasal polyposis (N=3, 50%). Two patients (N=2, 33.3%) with life-threatening organ dysfunction were given concurrent antibiotics and steroids; the antibiotics were later modified based on culture and sensitivity results. One of these patients received antituberculosis therapy as Mycobacterium tuberculosis (MTB) was detected after 27 days of incubation in mycobacterial growth indicator tube broth. The remaining four patients (N=4, 66.7%) received antibiotics initially for 5-7 days until clinical resolution of pneumonia. Ultimately, they all showed clinical and radiological resolution (N=6, 100%) within 3-6 months of treatment. RESULTS: The patients exhibited constitutional symptoms such as fever and weight loss; lower airway disease symptoms including dry cough and hemoptysis; nasal and ear disease symptoms like epistaxis, ear pain, and ear discharge; and a renal disease symptom, hematuria. Computed tomography of the thorax revealed bilateral consolidations, most of which were cavitating. Bronchoalveolar lavage cultures grew Escherichia coli, Burkholderia cepacia, Pseudomonas aeruginosa, Klebsiella pneumoniae, and MTB, whereas pus swab cultures from otitis media grew Pseudomonas aeruginosa, Staphylococcus aureus, and coagulase-negative staphylococci. DISCUSSION: This study highlights the therapeutic challenges of GPA complicated by concurrent infections. Patients exhibited typical GPA signs, confirmed by PR3 c-ANCA levels. Concurrent infections require cautious antibiotic treatment before starting immunosuppressive therapy, except in life-threatening organ dysfunction. A unique case presented with both tuberculosis and GPA. Tailored treatment regimens combining antibiotics and immunosuppressives, including corticosteroids, methotrexate, and rituximab, resulted in clinical and radiological improvement in all the patients within 3-6 months. The addition of co-trimoxazole reduced the incidence of non-severe GPA relapses. CONCLUSION: Tailored treatment plans addressing both infectious and autoimmune aspects are essential for optimal care in GPA complicated by concurrent infections. This study highlights the need for a multidisciplinary approach involving pulmonologist, rheumatologist, microbiologist, and pathologist in the diagnosis and treatment of GPA, emphasizing the importance of individualized treatment plans tailored to the specific clinical scenario.

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This case report highlights the importance of recognizing granulomatosis with polyangiitis (GPA) as a rare but potential cause of recurrent granulomatous mastitis and breast abscesses. The case report describes a patient who presented with recurrent breast abscesses over many years, initially misdiagnosed as infectious mastitis, until a breast tissue biopsy revealed granulomatous inflammation. Further evaluation confirmed the diagnosis of GPA based on elevated anti-neutrophil cytoplasmic antibodies (ANCA). The authors emphasize that, while breast involvement is exceedingly rare in GPA, it should be considered in cases of refractory granulomatous mastitis, even in the absence of typical systemic GPA manifestations. Early recognition can prevent misdiagnosis, allow timely initiation of immunosuppressive treatment, and avoid unnecessary procedures. The report calls for improved awareness and further research into the clinical characteristics and optimal management strategies for GPA presenting with breast lesions.

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Granulomatosis with polyangiitis (GPA) is a systemic vasculitis that affects blood vessels and presents with vague constitutional symptoms, but more serious manifestations can develop, including pulmonary complications and glomerulonephritis. Currently, there are no definitive treatment guidelines. We present a case of a 66-year-old male with no previous medical history who was admitted for generalized constitutional symptoms for the past month. Imaging of the patient's brain revealed dural enhancement. Bronchoalveolar lavage was done and revealed diffuse alveolar hemorrhage (DAH). A kidney biopsy revealed granulomatosis with polyangiitis. The patient's hospital course was complicated by acute renal failure and required hemodialysis. Due to the patient's multi-organ involvement, the patient was treated aggressively with cyclophosphamide, rituximab, plasma exchange (PE), and steroids. GPA is a systemic vasculitis that can present with multi-organ involvement. A prompt diagnosis is necessary to initiate treatment and preserve organ function. More research is needed to determine which combination therapies are the best treatment modalities in cases of severe multi-organ system involvement.

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Granulomatosis with polyangiitis (GPA) is a rare small-vessel vasculitis that typically presents with a triad of sinonasal, pulmonary, and renal symptoms. Here, we present the case of a 43-year-old female with a history of substance use disorder who presented with vision changes and worsening left eye pain over five days. Previous evaluations raised concerns about GPA versus cocaine-induced vasculitis, but diagnostic confirmation was hindered by a lack of medical follow-up. Prompt multidisciplinary intervention led to significant improvement following steroid therapy and IV antibiotics, and the patient was ultimately diagnosed with a high GPA. This case highlights the complexities involved in diagnosing and managing GPA presenting as orbital apex syndrome, particularly in patients with comorbidities and non-adherence to medical follow-up.

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Background: Granulomatosis with polyangiitis (GPA) is a systemic autoimmune disease characterized by necrotizing granulomatous vasculitis of the small- and medium-sized vessels. Classical GPA affects the upper and lower airways and kidneys. It commonly affects the nose and paranasal sinuses, middle and inner ear, and subglottic region of the larynx. Therefore, otolaryngological involvement is common in GPA and can sometimes be the initial presentation. In rare cases, otologic signs and symptoms can be the initial manifestations of this disease, including recurrent otitis media, otitis media with effusion, and sensorineural hearing loss. Case Description: In the present study, we describe an atypical case of GPA of a 22-year-old female. The patient presented with severe and complicated otitis media with hearing loss and polyneuropathy (facial nerve paralysis and trigeminal nerve impairment), in addition to nasopharyngeal and parotid infiltration, in the absence of other otolaryngologic and systemic manifestations of GPA. Conclusions: The diagnosis of GPA can be challenging due to its wide range of clinical manifestations. Otologic signs and symptoms are rare in this disease and can sometimes be the initial manifestations. Early diagnosis and treatment are important to prevent serious and permanent complications of the disease. Otolaryngologists should have high index of suspicion to systemic diseases such as GPA.

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Silent sinus syndrome (SSS) is a rare condition characterized by the collapse of the maxillary sinus and the sinking of the eye socket (enophthalmos). Only around 100 cases of SSS have been reported so far. The underlying cause of this condition is the chronic obstruction of the osteomeatal complex, which leads to sinus contraction. In this case, we present a novel finding linking SSS with granulomatosis with polyangiitis (GPA). The patient described is a 39-year-old male who was diagnosed with SSS after a prolonged period of sinus pressure, headaches, epistaxis, and generalized congestion. Additionally, the patient reported a significant autoimmune history, including a previous occurrence of ANCA-mediated glomerulonephritis. Surgical intervention revealed the presence of significant granulation tissue, while histopathological examination identified areas of necrosis, vasculitis, and multinucleated giant cells consistent with GPA. This finding was further supported by the detection of positive blood c-ANCA. This case is particularly noteworthy as it is the first reported instance of GPA causing SSS. It serves as an excellent example to illustrate the underlying pathophysiology of SSS.

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Granulomatosis with polyangiitis (GPA), formerly known as Wegener's granulomatosis, is an anti-neutrophilic cytoplasmic autoantibody (ANCA)-associated small-vessel vasculitis. Typically, it causes upper and lower respiratory tract necrotizing granulomatous inflammation and necrotizing glomerulonephritis. The diagnosis is made through clinical symptoms, positive antibody testing, imaging, and kidney biopsy. We describe the case of a man in his 60s who presented with multiple complications of GPA including rapidly progressive renal failure requiring dialysis, diffuse alveolar hemorrhage, acute respiratory distress syndrome (ARDS), circulatory shock, submassive pulmonary embolism, and biventricular and dilated cardiomyopathy.

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Granulomatosis with polyangiitis (GPA) is a rare multisystem disease characterized by vasculitis affecting small vessels, resulting in the formation of necrotising granulomata, primarily affecting the lungs, the upper respiratory tract, and kidneys. Almost all patients have upper and lower respiratory involvement; up to 85% of patients with GPA develop kidney disease within two years of diagnosis. Cutaneous, neurological, and ocular manifestations are also seen with varying frequencies. However, cardiac manifestations of the disease are rare and scarcely reported in the literature. Here, we report a case of a 65-year-old female with an initial diagnosis of pulmonary aspergillosis based on the presence of septate hyphae branching at acute angles on lung biopsy and elevated serum galactomannan, who, over the following months, developed a multitude of issues such as myocardial infarction, sterile endocarditis, splenic infarction, and heart block, as well as the challenges faced in establishing a diagnosis and managing its complications.

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Granulomatosis with polyangiitis (GPA) is a rare vasculitis that can pose a significant mortality risk given its multiorgan involvement and is the most common of the three anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitides. Cardinal pathological features include necrotizing granulomas of the respiratory tract, small and medium vessel vasculitis, and glomerulonephritis. Early treatment is imperative to reduce permanent organ damage such as end-stage kidney disease. We describe the first case of GPA relapse 38 years after the initial pulmonary presentation. The patient previously had isolated lung involvement with preserved renal function, but presented with an acute kidney injury, uremia, and several constitutional symptoms. The patient was treated with corticosteroids and intermittent hemodialysis and initiated on immunosuppressants; the clinical course is highlighted by eventual renal recovery. Our purpose is to highlight the importance of treating patients to complete immunological recovery, particularly in GPA vasculitis, to prevent unnecessary relapse and further loss of renal function.

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ANCA-associated vasculitis (AAV) can affect multiple organs with severe life-threatening manifestations. Disease monitoring is difficult due to a lack of defined biomarkers. We aimed to assess the diagnostic role of serum interleukin-6 and vascular ultrasonography in AAV and subclinical atherosclerosis. The study included 20 AAV patients and two control groups of 34 patients with rheumatoid arthritis (RA) and 35 healthy controls. The levels of Il-6, carotid intima-media thickness test (CIMT), atherosclerotic plaque, and degree of stenosis were investigated. A GRACE-risk score was calculated for AAV and RA patients. The AAV patients had elevated levels of IL-6 (115 ± 23.96) compared to the RA patients (91.25 ± 42.63) and the healthy controls (15.65 ± 3.30), p < 0.001. IL-6 showed a diagnostic accuracy of 73% in distinguishing AAV from RA patients (AUC = 0.730; 95% CI 0.591 to 0834). In the AAV group, CIMT was 1.09, above the upper reference value of 0.90, p < 0.001. The AAV patients had a higher median GRACE risk score, and 60% of them had a high risk of cardiovascular events as compared to 35% of the RA patients. Sonography of extracranial vessels and serum levels of IL-6 can be used in daily clinical practice to diagnose and monitor patients with AAV.

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Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos , Artritis Reumatoide , Aterosclerosis , Biomarcadores , Grosor Intima-Media Carotídeo , Interleucina-6 , Humanos , Interleucina-6/sangre , Femenino , Masculino , Persona de Mediana Edad , Artritis Reumatoide/sangre , Artritis Reumatoide/diagnóstico por imagen , Artritis Reumatoide/complicaciones , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/sangre , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/complicaciones , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/diagnóstico por imagen , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/diagnóstico , Biomarcadores/sangre , Pronóstico , Adulto , Aterosclerosis/sangre , Aterosclerosis/diagnóstico por imagen , Aterosclerosis/etiología , Aterosclerosis/diagnóstico , Anciano , Estudios de Casos y Controles , Arterias Carótidas/diagnóstico por imagen , Valor Predictivo de las Pruebas , Ultrasonografía de las Arterias Carótidas

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There have been reports of COVID-19 vaccination triggering anti-nuclear cytoplasmic antibody (ANCA)-associated vasculitis (AAV), but no robust studies have examined the link. This retrospective cohort study assessed the impact of COVID vaccination on the rate of denovo and relapsed AAV in a Sydney Local Health District from 2018 to 2022. Despite more than 95% of the population receiving vaccination, the case rate of AAV was stable. These findings do not support a relationship between COVID vaccination and AAV.

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Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos , Coronavirus , Granulomatosis con Poliangitis , Poliangitis Microscópica , Humanos , Estudios Retrospectivos , Vacunas contra la COVID-19 , Anticuerpos Anticitoplasma de Neutrófilos

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Wegener's granulomatosis (WG), also termed granulomatosis with polyangiitis, is a vasculitic condition with numerous systemic manifestations. It is mainly a pauci-immune vasculitis which involves small and medium-sized vessels. Herein, we report a case of a 72-year-old female with a background history of type 2 diabetes mellitus and hypertension. She presented to the hospital with recurrent nasal congestion, headache, and intermittent facial pain for two months' duration. At the initial presentation, she was diagnosed with pansinusitis, for which she was treated with antibiotics and was discharged. Two weeks later, she presented with progressively worsening bilateral lower limb numbness and weakness for one week's duration. With serial investigations, she was diagnosed with WG and was treated with intravenous methylprednisolone along with cyclophosphamide, after which she made a significant improvement in her clinical status.

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Granulomatosis with polyangiitis (GPA) is a rare systemic autoimmune disease. Major contributions of HLA genes have been reported; however, HLA typing-based diagnosis or risk prediction in GPA has not been established. We have performed a sequencing-based HLA genotyping in a north Indian GPA cohort and controls to identify clinically relevant novel associations. PR3-ANCA-positive 40 GPA patients and 40 healthy controls from north India were recruited for the study. Targeted sequencing of HLA-A,-B,-C,-DRB1,-DQB1, and -DPB1 was performed. Allelic and haplotypic associations were tested. Molecular docking of susceptibility HLA alleles with reported super-antigen epitopes was performed. The association of substituted amino acids located at the antigen-binding domain of HLA was evaluated. Genetic association of five HLA-alleles was identified in GPA. The novel association was identified for C*15:02 (p = 0.04; OR = 0.27(0.09-0.88)). The strongest association was observed for DPB1*04:01 (p < 0.0001; OR = 6.2(3.08-11.71)), previously reported in European studies. 35 of 40 GPA subjects had at least one DPB1*04:01 allele, and its significant risk was previously not reported from the Indian population. Significantly associated haplotypes DRB1*03:01-DQB1*02:01-DPB1*04:01 (p = 0.02; OR = 3.46(1.11-12.75)) and DRB1*07:01-DQB1*02:02-DPB1*04:01 (p = 0.04; OR = 3.35(0.95-14.84)) were the most frequent in GPA patients. Ranging from 89 % to 100 % of GPA patients with organ involvement can be explained by at least one DPB1*04:01 allele. A strong interaction between the HLA and three epitopes of the reported super antigen TSST-1 of Staphylococcus aureus was confirmed. Our study highlighted the potential applicability of HLA typing for screening and diagnosis of GPA. A large multi-centric study and genotype-phenotype correlation analysis among GPA patients will enable the establishment of HLA-typing based GPA diagnosis.

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Anticuerpos Anticitoplasma de Neutrófilos , Granulomatosis con Poliangitis , Cadenas beta de HLA-DP , Humanos , Alelos , Anticuerpos Anticitoplasma de Neutrófilos/genética , Relevancia Clínica , Epítopos/genética , Frecuencia de los Genes , Granulomatosis con Poliangitis/genética , Haplotipos , Cadenas beta de HLA-DP/genética , Cadenas beta de HLA-DQ/genética , Cadenas HLA-DRB1/genética , Simulación del Acoplamiento Molecular

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Avacopan, a C5a receptor antagonist (C5aR) presents a new therapeutic option to improve outcomes in ANCA-associated vasculitis (AAV). Here we present a case report of a patient initially requiring kidney replacement therapy (KRT), where avacopan was added as an additional adjunctive therapeutic agent late in the treatment course.

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Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos , Granulomatosis con Poliangitis , Ácidos Nipecóticos , Humanos , Granulomatosis con Poliangitis/tratamiento farmacológico , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/complicaciones , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/diagnóstico , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/tratamiento farmacológico , Riñón , Compuestos de Anilina/uso terapéutico , Anticuerpos Anticitoplasma de Neutrófilos

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Granulomatosis with polyangiitis (GPA), formerly Wegener's granulomatosis, is a small- and medium-vessel vasculitis with characteristic cutaneous morphologic presentation and systemic involvement. Most patients have palpable purpura at some point in their disease course, but this is not always the presenting manifestation. This autoimmune disorder can affect a range of organs, with the upper and lower respiratory tract, kidneys, and nervous system being commonly implicated, while gastrointestinal and cardiac involvement is less frequent. This is a 44-year-old female presenting to the emergency department (ED) with polyarthralgia and palpable purpura. Palpable purpura was distributed on the oral palate, elbow, and lower back, and a punch biopsy revealed leukocytoclastic vasculitis (LCV). While this was an atypical distribution for leukocytoclastic vasculitis, the skin biopsy provided the necessary evidence to diagnose GPA. This case characterizes non-specific and atypical signs and symptoms of GPA that all providers should be aware of in order to diagnose the condition early in its disease course.

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INTRODUCTION: Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) are rare autoimmune diseases triggering inflammation of small vessels. This real-world analysis was focused on the most common AAV forms, granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA), to describe patients' demographic and clinical characteristics, therapeutic management, disease progression, and the related economic burden. METHODS: A retrospective analysis was conducted on administrative databases of a representative sample of Italian healthcare entities, covering approximately 12 million residents. Between January 2010 and December 2020, adult GPA patients were identified by payment waiver code or hospitalization discharge diagnosis, and MPA patients by payment waiver code with or without hospitalization discharge diagnosis. Clinical outcomes were evaluated through AAV-related hospitalizations, renal failure onset, and mortality. Economic analysis included healthcare resource utilization deriving from drugs, hospitalizations, and outpatient specialist services. The related mean direct costs year/patient were also calculated in patients stratified by presence/absence of glucocorticoid therapy and type of inclusion criterion (hospitalization/payment waiver code). RESULTS: Overall, 859 AAV patients were divided into GPA (n = 713; 83%) and MPA (n = 146; 17%) cohorts. Outcome indicators highlighted a clinically worse phenotype associated with GPA compared to MPA. Cost analysis during follow-up showed tendentially increased expenditures in glucocorticoid-treated patients versus untreated (overall AAV: €8728 vs. €7911; GPA: €9292 vs. €9143; MPA: €5967 vs. €2390), mainly driven by drugs (AAV: €2404 vs. €874; GPA: €2510 vs. €878; MPA: €1881 vs. €854) and hospitalizations. CONCLUSION: Among AAV forms, GPA resulted in a worse clinical picture, higher mortality, and increased costs. This is the first real-world pharmaco-economic analysis on AAV patients stratified by glucocorticoid use on disease management expenditures. In both GPA and MPA patients, glucocorticoid treatment resulted in higher healthcare costs, mostly attributable to medications, and then hospitalizations, confirming the clinical complexity and economic burden for management of patients with autoimmune diseases under chronic immunosuppression.

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Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos , Poliangitis Microscópica , Adulto , Humanos , Estudios Retrospectivos , Glucocorticoides , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/tratamiento farmacológico , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos/complicaciones , Poliangitis Microscópica/terapia , Costos de la Atención en Salud

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We describe a rare case of concurrent eosinophilic granulomatosis with polyangiitis and mixed connective tissue disease in a 27-year-old man who presented with pulmonary, renal, cardiac, and skin manifestations. We confirmed the diagnosis based on clinical, histopathological, and serological criteria. We treated the patient with corticosteroids, methotrexate, cyclophosphamide, and hydroxychloroquine, achieving early remission. The coexistence of both conditions in the same patient is extremely rare and has only been reported in a few cases worldwide. We also review the literature on these two rare autoimmune diseases' coexistence, pathogenesis, diagnosis, and management. Our case emphasizes recognizing overlapping autoimmune conditions in patients with complex clinical features and employing a comprehensive diagnostic approach and tailored treatment strategies. Further research is needed to understand these patients' epidemiology, prognosis, and optimal therapy. Early diagnosis and aggressive immunosuppression are crucial for achieving remission and preventing organ damage. We also identified the knowledge gaps and research needs in this field.

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Anti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV) is a class of small vessel vasculitis that includes granulomatosis with polyangiitis (GPA), eosinophilic GPA (EGPA), and microscopic polyangiitis (MPA). Despite extensive research, the mechanisms behind AAV etiology remain obscure. The genetics of AAV is a complex area of investigation because of the rarity of familial cases. However, recent multi-center genome-wide association studies (GWAS) have greatly contributed to our understanding of the genetic basis of AAV. In this study, we report a rare occurrence of GPA in two Caucasian family members who presented with similar clinical symptoms and performed a comprehensive review to study the present literature available regarding the heritability of this disease.

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Granulomatosis with polyangiitis (GPA) is an autoimmune, necrotizing granulomatous disease that affects small- and medium-sized blood vessels. Aspergilloma is a fungal mass of Aspergillus and usually found in the preexisting cavity in lung parenchyma. Surgical resection is the mainstay of treatment of aspergilloma. In this article, we present a case of a 70-year-old male with GPA and aspergilloma who presented with massive, life-threatening hemoptysis. Further workup with a chest computed tomography (CT) pulmonary angiogram demonstrated a pulmonary artery pseudoaneurysm along the wall of the lung cavity which was emergently managed with embolization and required monitoring in the medical intensive care unit. This case report alerts clinicians to maintain a high level of suspicion for an aneurysm if the degree of hemoptysis is higher than expected.