Search & Filter All Posts
All Articles
(23 Results)![Membranoproliferative Glomerulonephritis](https://www.arkanalabs.com/wp-content/uploads/MPGN-pattern-copy-432x288.jpg)
Membranoproliferative Glomerulonephritis Pattern
This glomerulus shows a membranoproliferative glomerulonephritis (MPGN) pattern of injury. To a large extent, the etiologic differential diagnosis depends on…
![nodular glomerulosclerosis](https://www.arkanalabs.com/wp-content/uploads/x26-copy-432x288.jpg)
Diagnose This! (March 5, 2018)
What is the most likely diagnosis? For bonus points, what is the basic differential for this morphologic finding (non-immune and…
![Collagenofibrotic Glomerulopathy](https://www.arkanalabs.com/wp-content/uploads/Mesangial-and-subendothelial-expansion-by-weakly-PAS-positive-material-432x288.jpg)
Diagnose This! (February 12, 2018)
What is your diagnosis? (Congo red is negative as is routine immunofluorescence) …
![extensive mesangial and subendothelial deposition of PAS-positive](https://www.arkanalabs.com/wp-content/uploads/A-2-432x288.jpg)
Fibronectin Glomerulopathy
A renal biopsy was performed in a 32-year-old female with microscopic hematuria and nephrotic range proteinuria of 4 grams per…
![Focal Segmental Glomerulosclerosis](https://www.arkanalabs.com/wp-content/uploads/Fig-1_Foot-process-effacement-copy2-1-432x288.jpg)
Foot Process Effacement and Focal Segmental Glomerulosclerosis
Knowing whether a patient has clinical nephrotic syndrome and knowing the degree of podocyte foot process effacement can be helpful…
![Congenital Nephrotic Syndrome](https://www.arkanalabs.com/wp-content/uploads/Fig-1-copy-19-432x288.jpg)
Congenital Nephrotic Syndrome
The biopsy from this 5-year-old male with nephrotic syndrome shows immature glomeruli without segmental glomerulosclerosis (Fig 1), associated with focal…