Back to Blog

Necrotizing Vasculitis

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

Apr 28, 2017

Necrotizing Vasculitis
Camera information: Calibration= 1.000 Pixels per pixel; Capture format= 1392 x 1040, Full Frame HQ; Gamma= 0.61; Gain= 1.0 x; Exposure= 10.1 ms; Auto exposure= On; Image type= Colour; Shading= (None); Sharpening= Medium; Black clip= 8; White clip= 220; Microscope information:

Necrotizing Vasculitis as seen with Silver Methenamine Masson’s Trichrome (SMMT) stain on a renal biopsy. The immunofluorescence panel was negative (pauci-immune). Renal biopsies contain small arteries and thus this is consistent with granulomatosis with polyangiitis (GPA). The biopsy was obtained from an 87-year-old male who presented with hematuria, proteinuria and a creatinine of 2.5 mg/dl. Following the biopsy, ANCA serologies were ordered and cANCA positivity was found.

Tags:

Quick note: This post is to be used for informational purposes only and does not constitute medical or health advice. Each person should consult their own doctor with respect to matters referenced. Arkana Laboratories assumes no liability for actions taken in reliance upon the information contained herein.