ANCA-associated kidney disease preceded by orbital pseudotumor.
Ileisa OlesonAdeline FeckerKelsey RichardsonAbbie BauerNicole K AndeenVanderlene L KungPublished in: Pediatric nephrology (Berlin, Germany) (2023)
In isolation, TBM deposits and increased IgG4 + plasma cells are suggestive of IgG4-RD. In the context of a positive ANCA and pauci-immune crescentic glomerulonephritis, however, increased IgG4 + plasma cells due to AAV are favored. In cases with features of IgG4-RD, ANCA positivity suggests an alternate diagnosis of AAV to be more likely.