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Background Severe acute respiratory syndrome coronavirus 2 may be associated with late-onset necrotizing myositis, mimicking autoimmune inflammatory myositis; however, the exact underlying pathogenesis of severe acute respiratory syndrome coronavirus 2-induced myositis is still unclear. Case Presentation Herein, we report a rare case of necrotizing autoimmune myositis in a 67-year-old middle eastern male following coronavirus disease 2019 infection, who presented with muscle weakness. The patient had positive anti-NXP2. The diagnosis of necrotizing autoimmune myositis was made according to muscle weakness, increased liver enzymes, electromyography and nerve conduction velocity results, and muscle biopsy. The patient underwent a full malignancy evaluation, which was unremarkable, and was discharged in relatively well condition with a daily dose of 1 mg/kg prednisolone and azathioprine 150 mg (2 mg/kg). Conclusion Our report highlights the already known possible protracted sequence of coronavirus disease 2019 infection and the potential for delayed-onset necrotizing myositis.

A 55‐year‐old lady with a nine‐year history of controlled sarcoidosis developed vasculitis after Sinopharm COVID‐19 vaccine (BBIBP‐ CorV). She was ultimately diagnosed with mononeuritis multiplex based on EMG‐NCV findings and administered methylprednisolone and cyclophosphamide pulse therapy for 5 days, and then continue with prednisolone and a monthly pulse of cyclophosphamide.

Introduction: A case of pulmonary sarcoidosis is reported because of difficulties in diagnosis and treatment, including the co-existence of ankylosing spondylitis (AS) and severe corticosteroid dependence. Case Presentation: A 48-year-old nonsmoking woman referred to the hospital because of chronic nonproductive cough and dyspnea with a 10-year history of AS. Bilateral rhonchi was detected in lung auscultation. There was a significant limitation in lumbar activity and range of motion in flexion (positive Schober’s test), extension, and lateral bending. In lumbosacral magnetic resonance imaging (MRI), irregularities in the sacroiliac joint and bilateral sacroiliitis were evident. The angiotensin-converting enzyme level was elevated. Biopsy in hilar lymphadenopathy by transbronchial lung biopsy was done, and the histopathological findings showed chronic nonnecrotizing granulomatosis inflammation compatible with sarcoidosis. Anti-tumor necrosis factor drugs was effective on steroiddependent coexisting of sarcoidosis and AS. The symptoms were absent in regular follow up. Conclusion: Pulmonary fibrosis due to sarcoidosis can be prevented by suitable treatment. Clinical trials are needed to confirm the impact of treatments with monoclonal antibodies against tumor necrosis factor (TNF), for curing sarcoidosis.

Background Antineutrophil cytoplasmic antibody-associated vasculitis is dominated by inflammatory occlusion of small vessels, causing tissue ischemia in various organs. This disorder has rarely been associated with vasculopathy, such as antiphospholipid syndrome. Case presentation We report a case of a 48-year-old Persian male presenting with distal digital gangrene along with inflammatory arthralgia. High titers of anti-proteinase 3 and antiphospholipid antibodies (anticardiolipin antibody) were detected in laboratory evaluation. Therefore, a diagnosis of antineutrophil cytoplasmic antibody-associated vasculitis and antiphospholipid syndrome was made and treated with anticoagulant along with monthly pulses of cyclophosphamide and a daily dose of 1 mg/kg prednisolone. Conclusion Our case, along with other reports, illustrates that these two entities can coexist. Therefore, monitoring antiphospholipid antibodies in patients with antineutrophil cytoplasmic antibody-associated vasculitis with or without clinical evidence of any thrombosis and ruling out thrombosis in cases that do not respond to proper treatment of vasculitis may be relevant to prevent irreversible or fatal organ damage.

Objective Perianal fistula is a common and debilitating disease. The definite treatment is surgery, identifying of primary and secondary tract, internal opening of fistula has important role in planning of surgical techniques. This study's goal was to determine the diagnostic accuracy of 3-D ultrasound in perianal fistula in comparison with intraoperative findings. Materials and methods This study is a cross-sectional study. Adult patients (18–85 years old) with anal fistula have been selected. 3-D EUS was done for all patients by gastroenterologist. Then surgery was done. Check lists filled by endoscopist and surgeon was studied and data analysis was done. Results The study examined 76 patients, in according to results for kappa coefficient there was a perfect agreement between 3-D ultrasound results and surgery in internal opening that was 96% (p < 0.001) and concordance was 0.974. In extension tract the agreement was 0.973 and concordance was 0.987 (p < 0.001). Conclusion There was perfect agreement between 3-D ultrasound and surgical findings in internal opening, primary tract and trunk expansion. 3-D ultrasound shows a high diagnostic accuracy when compared with surgery to assessment of perianal fistula before surgery.

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