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fibrinoid necrosis and crescent formation
Diagnose This!

Diagnose This (February 21, 2022)

In a patient with AKI and hematuria, what is your diagnosis? …

Diagnose This!

Diagnose This (February 14, 2022)

In a 25yo with sepsis post-cholecystectomy and C. diff colitis, what is your diagnosis? …

Necrotizing Vasculitis
Teaching Points

Necrotizing Vasculitis

Necrotizing Vasculitis as seen with Silver Methenamine Massons Trichrome (SMMT) stain on a renal biopsy. The immunofluorescence panel was negative…

Patrick D. Walker, MD renal pathologist at arkana laboratories
By Patrick D. Walker, MD

Necrotizing Vasculitis
Teaching Points

Necrotizing Vasculitis

Necrotizing vasculitis as shown using fluorescence with DAPI-FITC-Texas Red excitation on an H&E stained section. Subtle and not so subtle…

Patrick D. Walker, MD renal pathologist at arkana laboratories
By Patrick D. Walker, MD