A sample from the pathology teaching slide set on IgA Nephropathy, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

What considerations should be included in your differential diagnosis given the provided histologic finding? #DiagnoseThis #nephtwitter #pathtwitter #renal #kidneypath

Here is today’s #eyeSCANdy! Dysmorphic red blood cells from the urine of a patient with crescentic glomerulonephritis. Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

A sample from the pathology teaching slide set on Membranous Nephropathy Research Recommendation, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

This renal biopsy illustrates severe chronic kidney injury and its effects on all major compartments of the cortex: most glomeruli are globally sclerotic, the atrophic tubules are widely spaced, the interstitium is fibrotic, and the arterial walls show intimal fibrosis.  #TeachingPoints #pathology

What’s your diagnosis? #DiagnoseThis #nephtwitter #pathtwitter #renal #kidneypath

Here is today’s #eyeSCANdy! Urine – calcium oxalate crystals Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

A sample from the pathology teaching slide set on IgA Nephropathy, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

Immunotactoid glomerulopathy is one of many glomerular diseases characterized by organized deposits.  #TeachingPoints #kidneypath #renal #pathology

This is the C4d immunofluorescence from a 5y post-transplant biopsy of an AA female who had ESRD due to lupus nephritis. What is your diagnosis? #DiagnoseThis #nephsky #pathsky #renal #kidneypath

We're proud to share a new publication with @aaronstorey.bsky.social, Dr. Patrick Walker, Dr. Chris Larsen, and @glombandit.bsky.social, titled "Serine Protease HTRA1 is a Common Autoantigen in Membranous Nephropathy in Patients of 80 Years and Older."

We're excited to share a new research publication from Dr. Jon Wilson, @glombandit.bsky.social, Dr. Randy Haun, and Dr. Chris Larsen titled "Framework for Apolipoprotein 1-Mediated Kidney Disease Classification." Read here: https://www.kireports.org/article/S2468-0249(26)02639-2/fulltext #nephsky

A sample from the pathology teaching slide set on Membranous Glomerulopathy: PLA2R Testing and When to Consider Kidney Biopsy, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

Here is today’s #eyeSCANdy! Scanning EM of a proteinuric glomerulus with capillary loop showing widening and partial loss of interdigitating podocyte foot processes. Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

This biopsy shows glomerular arteriolar and capillary thrombi characteristic of thrombotic microangiopathy (TMA). Immunofluorescence studies (not shown) are negative for significant glomerular or tubulointerstitial immune complex deposits.   #TeachingPoints #kidneypath #renal #pathology

In a patient who is IV drug user and IF showing C3 only staining, what is your diagnosis? #DiagnoseThis #nephtwitter #pathtwitter #renal #kidneypath

A sample from the pathology teaching slide set on IgA Nephropathy, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

Here is today’s #eyeSCANdy! Scanning EM of a normal glomerulus showing a glomerular capillary loop with interdigitating podocyte foot processes. Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

Some patients with membranous glomerulopathy also have associated focal segmental glomerulosclerosis (FSGS) lesions. #TeachingPoints #kidneypath #renal #pathology

This is an IgG IF viewed under both fluorescent and polarized light from a patient with AKI following endovascular procedure. What is your diagnosis? #DiagnoseThis #nephtwitter #pathtwitter #renal #kidneypath

A sample from the pathology teaching slide set on Membranous Glomerulopathy, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

Dr. Miller, our Fellowship Director, and Dr. Murphy, our Visiting Scholars Program Director will be at the USCAP Fellowship Fair. Stop by table 16 to say hi and grab a tote! #USCAP #PathFellow #USCAPFellowshipFair

Here is today’s #eyeSCANdy! Scanning EM of a normal glomerulus showing a glomerular capillary loop with interdigitating podocyte foot processes. Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

As published decades ago by Bonsib et al. (see reference), fluorescence microscopy of eosin-stained frozen section slides can be a valuable tool in providing diagnostic clues in kidney biopsies. #TeachingPoints #kidneypath #renal #pathology

25 years ago this week, we received our first case. Our purpose has always been to improve patient care, advance the understanding of renal diseases, and support the renal community. We're proud to say that we're still showing up everyday with passion to fulfill that purpose.  #Arkana25 #TeamArkana

32 yo renal transplant recipient with AKI and pneumonia. A recent biopsy had shown borderline changes for TCMR and the patient received pulse steroids. #DiagnoseThis #nephtwitter #pathtwitter #renal #kidneypath

Sometimes the giant cells in granulomatous inflammation are truly giant! #nephsky #pathsky #renal #kidneypath

A sample from the pathology teaching slide set on Lupus Nephritis and Thrombotic Microangiopathy (TMA), jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

Here is today’s #eyeSCANdy! Scanning EM of a normal glomerulus showing a glomerular capillary loop with interdigitating podocyte foot processes.  Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

1/ This allograft biopsy shows the characteristic features of adenovirus infection.   #TeachingPoints #kidneypath #renal #pathology

This is the biopsy of a 62yo Hispanic female with hematuria and proteinuria. What is this stain and what is the diagnosis? #DiagnoseThis #nephtwitter #pathtwitter #renal #kidneypath

A sample from the pathology teaching slide set on Lupus Nephritis: Maintenance Therapy for Class Ill and IV LN, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

Here is today’s #eyeSCANdy! Scanning EM of a normal glomerulus showing a glomerular capillary loop with interdigitating podocyte foot processes. Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

1/ A well-prepared Jones methenamine silver stain can help localize immune deposits. By sharply defining the glomerular capillary basement membrane (GBM), the Jones stain confirms that the massive confluence of immune deposits is confined to the subendothelial region of the capillary wall.

In a 23yo M with proteinuria, hematuria and CKD, what is your diagnosis? #DiagnoseThis #nephsky #pathsky #renal #kidneypath

We have launched four neuropathology quizzes on our website! If you're interested in testing your neuropathology wisdom, head to our site. #neuropathology #neuromuscular #pathology #neuropath #neuronotes

1/ What is the best pathologic diagnosis? Clinical history in thread. #NeuroNotes #neuropath #pathology #neuromuscularpath

We're excited to share a new research publication from @aaronstorey.bsky.social, @glombandit.bsky.social, and Dr. Chris Larsen titled, "Proteomic Profiling of Complement Components in Glomerular Disease." Read here: https://pubmed.ncbi.nlm.nih.gov/41720186/ #ArkanaResearch #RenalPath #RenalResearch

Here is today’s #eyeSCANdy! Acellular scanning EM of a normal glomerular tuft showing the subpodcocytic capillary loop basement membranes following removal of the podocytes.  Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

A sample from the pathology teaching slide set on Immunoglobulin and Complement-Mediated Glomerular Diseases with an MPGN Pattern of Injury, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

This is the biopsy from a 41yo Middle Eastern female who received a renal transplant a few years prior and presents with AKI. What is your diagnosis?  #DiagnoseThis #nephsky #pathsky #renal #kidneypath

We have officially launched four new neuropathology quizzes on our website! If you're interested in testing your neuropathology wisdom, head to our website to test your knowledge. #neuropathology #neuromuscular #pathology 

This 76-year-old male presented with complaints of muscle pain. Their past medical history is significant for Sjogren’s syndrome, fibromyalgia, peripheral neuropathy, hypertension and hyperlipidemia.

We asked Dr. Kowalewska about her path from med student to renal pathologist! Have you thought about exploring renal pathology? Check out our visitor program to begin exploring the world of renal! #path2path #roadtorenal #renalpathology #pathologist

We have officially launched four new neuropathology quizzes on our website! If you're interested in testing your neuropathology wisdom, head to our website to test your knowledge. #neuropathology #neuromuscular 

Here is today’s #eyeSCANdy! Acellular scanning EM of a normal glomerular tuft showing the subpodcocytic capillary loop basement membranes following removal of the podocytes.  Photo courtesy of Dr. Stephen Bonsib. #renal #pathology #kidneypath

A sample from the pathology teaching slide set on Immunoglobulin and Complement-mediated Glomerular Diseases with an MPGN Pattern of Injury, jointly prepared by Arkana Laboratories and @goKDIGO. http://KDIGO.org/guidelines/gd/ #KDIGO #pathology #renal #kidneypath

Meet Dr. K! We're so honored and excited to announce that Dr. Jolanta Kowalewska has joined Arkana's team of renal pathologists. Welcome to the team Dr. K! 👏🔬  #TeamArkana #renalpathologist #renalpathology

In a renal transplant recipient, what is your diagnosis? #DiagnoseThis #nephsky #pathsky #renal #kidneypath

Roughly 38% of all kidney discards can be attributed to “overcalling” or misinterpretation of kidney biopsy results. Stay tuned for more content about how to read and interpret donor biopsies. In the meantime, head to http://organdonationalliance.org to learn more about #NationalDonorDay. #ckd