Fibrillary Glomerulonephritis and Apolipoprotein A-IV Amyloidosis: A Rare Dual Pathology Diagnosed by Mass Spectrometry and DNAJB9 Immunohistochemistry
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Fibrillary glomerulonephritis is a rare cause of proteinuric kidney disease characterized by Congo red-negative fibrillary deposits and typically shows DNAJB9 positivity on immunohistochemistry. Amyloidosis is defined by Congo red positivity and can be typed b... ...
