Stephen Bonsib, M.D., M.S., Author at Arkana Laboratories

Segmental Membranous GN Showing Confluent GBM Crater Formations

Published: October 19, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: acellular EM, craters, glomerular basement membrane, Segmental membranous

A scanning EM of acellular capillary loops from a biopsy with segmental membranous GN showing confluent GBM crater formations along the GBM across the top of the image is shown for today’s eyeSCANdy image! Photo credits to Dr. Stephen Bonsib.

Published: October 12, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: interdigitating foot processes, Normal glomerulus, normal podocyte

Today’s eyeSCANdy image shows scanning EM of a normal glomerulus with a glomerular capillary loop with interdigitating podocyte foot processes. Photo credits to Dr. Stephen Bonsib!

Published: October 5, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: duct of Bellini, papillary tip, renal papilla, urothelial cells

Today’s eyeSCANdy image shows scanning EM of normal papillary tip showing the ostia of a duct of Bellini and surrounding urothelial cells. Photo credits to Dr. Stephen Bonsib!

Published: September 28, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: glomerular basement membrane, membranous, membranous glomerulonephritis, Scanning Electron Microscopy

This eyeSCANdy image shows an acellular scanning EM with "craters" at high power on the subepithelial aspect of the glomerular basement membranes from a biopsy with membranous glomerulonephritis. Photo credits to Dr. Stephen Bonsib!

Published: September 21, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: acellular EM, craters, glomerular basement membrane, Segmental membranous

Today’s eyeSCANdy image shows scanning EM of acellular capillary loops from a biopsy with segmental membranous GN. Note the GBM crater formation along the BMs at middle left with relatively smooth BMs in other GBMs. Photo credits to Dr. Stephen Bonsib!

Published: September 14, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: acellular EM, craters, glomerular basement membrane, Segmental membranous

This eyeSCANdy image shows acellular SEM in segmental membranous GN showing large craters (arrows) along the GBM. Photo credits to Dr. Stephen Bonsib!

Published: September 7, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: acellular EM, GBM pinholes, membranous gloemurolpathy stage 1

Pinholes Viewed on Silver Stain, Membranous Glomerulonephritis Stage I

This eyeSCANDy image is an acellular scanning EM from a biopsy with membranous glomerulonephritis, stage I showing numerous small shallow depressions representing the site of immune complexes which were extracted corresponding to “pinholes” viewed on silver stain. Photo credits to Dr. Stephen Bonsib!

Published: August 31, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: acellular EM scanning, GBM duplication, Membranoproliferative glomerulonephritis

Glomerulus with a Membranoproliferative Pattern of Injury

Today’s eyeSCANdy image shows an acellular scanning EM with glomerular basement membrane duplication from a glomerulus with a membranoproliferative pattern of injury! Photo credits to Dr. Stephen Bonsib.

Published: August 24, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: glomerular basement membranes, membranous glomerulonephritis, Subepithelial deposits

Glomerular Basement Membranes, Subepithelial deposits

This eyeSCANdy image shows an acellular scanning EM of glomerular basement membranes from a biopsy with membranous glomerulonephritis, stage II showing a reticular pattern of the subepithelial GBM. The extracted deposits previously resided in the dark spaces. The lighter GBM corresponds to “spikes” on silver stain. Photo credits to Dr. Stephen Bonsib.

Published: August 17, 2021
By: Stephen Bonsib, M.D., M.S.
Tags: Macula densa, Normal glomerulus, Vascular Pole

Today’s eyeSCANdy image shows a normal glomerulus sectioned through the vascular pole showing the macula densa basement membrane tunnels. Photo credits to Dr. Stephen Bonsib!

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Accordion Archives

Segmental Membranous GN Showing Confluent GBM Crater Formations

Interdigitating Podocyte Foot Processes

Duct of Bellini and Surrounding Urothelial Cells

Membranous Glomerulonephritis

Segmental Membranous GN

Segmental Membranous

Pinholes Viewed on Silver Stain

Glomerulus with a Membranoproliferative Pattern of Injury

Glomerular Basement Membranes

Macula Densa Basement Membrane Tunnels

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