Background: Even though anti-neutrophil cytoplasmic antibodies (ANCA) are frequently linked to ANCA associated vasculitis (AAV), it's important to understand that other illnesses, including lung diseases, can also manifest as ANCA positivity. Finding the incriminated pathology might be difficult.
Aim: To report four ANCA-associated cases with a diagnosis problem.
Diagn Microbiol Infect Dis
July 2024
Background: Searching for Rheumatoid Factors (RF) in patients with coronavirus disease (COVID-19) has rarely been described.
Objectives: To investigate the association between RF isotypes (IgM, IgA, and IgG) and different clinical presentations of COVID-19 in a series of Tunisian patients.
Study Design: Eighty-two COVID-19 patients were enrolled in this study.