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Proliferative Glomerulonephritis
Art of Medicine

Art of Medicine: Proliferative Glomerulonephritis

The above painting shows endocapillary hypercellularity with mononuclear cells and neutrophils, as well as hyaline deposits within glomeruli. Red blood…

Infection-Associated Glomerulonephritis
Teaching Points

Infection-Associated Glomerulonephritis

A 60-year-old male presents with a painful left hip, hematuria, and a creatinine of 1.5 mg/dl. He was recently hospitalized…

Infection-Associated Glomerulonephritis in renal biopsy
Teaching Points

Infection-Associated Glomerulonephritis

This biopsy is taken from a 39-year-old woman who presents with abdominal pain, ascites, and lower extremity edema. Her serum…


Class IV Lupus Nephritis
Twitter Poll

Twitter Poll (July 26, 2018)

ANSWER: C The patient has a Diffuse Lupus Nephritis, Class IV-S (A). Although biopsy shows focal and segmental proliferative glomerulonephritis…

Vanessa Moreno, MD
By Vanessa Moreno, MD
Infection-Associated Glomerulonephritis
Diagnose This!

Diagnose This (April 2, 2018)

What is the most likely diagnosis? …

L. Nich Cossey, MD
By L. Nich Cossey, MD
ANCA Disease, LECT2 Amyloid, IgG4-Related Disease, AL amyloidosis, ANCA, digging deeper, Dr. Messias, Arkana Laboratories, pathology diseases
Digging Deeper

When Lightning Strikes Twice

This biopsy came to us for a workup on proteinuria. The patient is a 68-year-old female with a history of…

Nidia Messias, MD
By Nidia Messias, MD

intravascular diffuse large B-cell lymphoma, arkana laboratories, pushing glass, renal pathology
Pushing Glass

Pushing Glass (March 13, 2018)

A 65-year-old male presents with mild proteinuria and a sudden increase in creatinine. He was recently diagnosed with widely metastatic…

Membranoproliferative Glomerulonephritis
Teaching Points

Membranoproliferative Glomerulonephritis Pattern

This glomerulus shows a membranoproliferative glomerulonephritis (MPGN) pattern of injury. To a large extent, the etiologic differential diagnosis depends on…

Lupus Nephritis Class III/IV
Twitter Poll

Twitter Poll (January 4, 2018)

ANSWER: D Endocapillary hypercellularity, crescents, karyorrhexis and wire loops are some of the glomerular lesions seen in lupus nephritis class…

Vanessa Moreno, MD
By Vanessa Moreno, MD

Masked Paraprotein-Related Glomerulonephritis
Teaching Points

Infection-Associated GN

This kidney biopsy was performed on a 63-year-old female with a history of hypertension, congestive heart failure, lower extremity edema…

Acute Post-Infectious Glomerulonephritis
Teaching Points

Acute Post-Infectious Glomerulonephritis

These renal biopsy images are from an 8-year-old boy who experienced the abrupt onset of hypertension, lower extremity edema, gross…

focal and segmental necrotizing and crescentic lesions, Infective Endocarditis-Associated Glomerulonephritis
Teaching Points

Infective Endocarditis-Associated Glomerulonephritis

This renal biopsy was taken from a 35 year old male with history of intravenous drug abuse and MRSA tricuspid…


Infection-associated glomerulonephritis
L. Nich Cossey, MD
By L. Nich Cossey, MD
Trichrome Staining in Deposits
Teaching Points

Trichrome Staining in Deposits

While the trichrome stain is best known for assessing the extent of interstitial fibrosis, it is a versatile stain with…

Proliferative Glomerulonephritis with Monoclonal IgG Deposits (PGMID)
Teaching Points

Proliferative Glomerulonephritis with Monoclonal IgG Deposits

This 76-year-old white female developed nephrotic syndrome over about 3 months. She has proteinuria, 9 gm/24h and an elevated creatinine…

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