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AA Amyloid
Teaching Points

AA Amyloid

This biopsy from a patient with massive proteinuria showed diffuse and near-global involvement of glomeruli by amorphous deposits (Fig. 1)…

Wilson's Corner
Arkana Visualized

Wilson Corner

If you’ve ever met Dr. Jon Wilson, head of our neuropathology service, this set up outside his office makes perfect…

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By Chassity Jordan
Megalocytic Interstitial Nephritis
Teaching Points

Megalocytic Interstitial Nephritis

This biopsy shows a chronic active interstitial nephritis with numerous interstitial foamy macrophages containing abundant PAS-positive cytoplasmic granules (Fig 1-3).…


thrombotic microangiopathy
Diagnose This!

Diagnose This! (August 14, 2017)

An immunofluorescence panel for IgA, IgG, IgM, C3, C1q, kappa and lambda was negative. What is your diagnosis?   …

By L. Nich Cossey, MD
Arkana Artwork
Arkana Visualized

Arkana Artwork

We hang these two pieces proudly in one of our physician hallways. They were a gift from the talented nephropathologist…

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By Chassity Jordan
Randall’s plaques
Teaching Points

Randall’s Plaques

Randalls plaques are microscopic calcium phosphate deposits in the basement membranes of the thin loops of Henle. These plaques act…


Obsolescent Pattern in Glomerulosclerosis
Teaching Points

Global Glomerulosclerosis: Obsolescent Pattern

The image shows two globally sclerotic glomeruli exhibiting the so-called obsolescent pattern of glomerular sclerosis. The two key histologic features…

Fibrillary Glomerulopathy
Pushing Glass

Pushing Glass (August 8, 2017)

A 69-year-old man with past medical history of hypertension presents with nephrotic syndrome and 7 gm/day proteinuria. Serological studies are…

By Md Shahrier Amin, MD
Fabry Disease
Teaching Points

Fabrys

This biopsy shows glomeruli with visceral epithelial cells (podocytes) displaying ample vacuolated cytoplasm (Fig 1), which is highlighted on a…


Infection-associated glomerulonephritis
By L. Nich Cossey, MD
Dr. Kuperman, Arkana Laboratories, Renal pathologists
Arkana Physician Spotlight

Arkana Physician Spotlight: Dr. Kuperman

Dr. Michael Kuperman joined our staff in 2016, after previously practicing renal pathology for several years in Texas. He received…

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By Chassity Jordan
Meet Butters!, Arkanines
Arkana Visualized

Arkanines (August 4, 2017 )

Meet Butters! He enjoys picking fights with much larger dogs and stealing toys from his sister, but his cuteness makes…

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By Chassity Jordan

Light Chain Deposition Disease
Teaching Points

Light Chain Deposition Disease and Light Chain Proximal Tubulopathy

An elderly but previously healthy patient presents with weakness and fatigue and was found to have a creatinine of 3.0…

Patrick D. Walker, MD renal pathologist at arkana laboratories
By Patrick D. Walker, MD
arkana laboratories, arkana journal club, kidney pathology
Arkana Journal Club

Arkana Journal Club (August 3, 2017)

The Arkana Journal Club is happening right now. Follow @TheGoodMD on Twitter for live tweeting! #ArkanaJC http://jasn.asnjournals.org/content/28/7/2144 https://link.springer.com/article/10.1007%2Fs00467-016-3392-7

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By Chassity Jordan
Tubulointerstitial nephritis with uveitis
Teaching Points

Tubulointerstitial Nephritis with Uveitis

Tubulointerstitial nephritis with uveitis (TINU) was first described as a distinct entity by Dobrin, et al. in 1975. TINU primarily…