A unique case of indolent microscopic polyangiitis in an elderly gentleman: a case report and brief review

Clement Tan, Jithmy Perara, Pranav Kumar


Antineutrophil cytoplasmic autoantibody associated vasculitides has 3 different types: Granulomatosis with polyangiitis, eosinophilic granulomatosis and polyangiitis and microscopic polyangiitis. These vasculitides manifest differently based on which area of small and medium size vessels in our bodies that it affects. In this case report, we discuss a unique case of microscopic polyangiitis diagnosed in a 75-year-old male who was relatively asymptomatic i.e. indolent, apart from nodules present in the lung with the use of the diagnostic criteria outlined by 2022 American College of Rheumatology and European Alliance of Associations for Rheumatology. In addition, we reviewed briefly about vasculitis, its epidemiology and the workup of microscopic polyangiitis.


Vasculitis; Antineutrophil cytoplasmic autoantibody; ANCA associated vasculitis; Microscopic polyangiitis; Indolent vasculitis; Granulomatosis with polyangiitis; Eosinophilic granulomatosis and polyangiitis; Renal biopsy

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DOI: http://dx.doi.org/10.22551/2023.41.1004.10276

Copyright (c) 2023 Clement Tan, Jithmy Perara, Pranav Kumar

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ISSN: 2360-6975