Case presentation:
Seventeen-year-old male with a past medical history of COVID-19
pneumonia two months prior presented with acute kidney injury/failure
and diffuse alveolar hemorrhage (DAH). Rheumatologic workup revealed
P-ANCA and Myeloperoxidase (MPO) positivity. Kidney biopsy showed
necrotizing glomerulonephritis with limited immune complex deposition.
Subsequently, he was treated with pulse steroids, plasmapheresis, and
ultimately started on cyclophosphamide.