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(241 Results)![Pediatric Nephrotic Syndrome, childhood nephrotic syndrome, CSA, CNI, juxtaglomerular apparatus](https://www.arkanalabs.com/wp-content/uploads/07/21/Figure-A1-2-432x288.jpg)
Chronic Cyclosporine Toxicity in Pediatric Nephrotic Syndrome
This biopsy is from a 9-year-old boy who developed pediatric nephrotic syndrome in the first year of life and has…
![Membranous Glomerulopathy Subtyping, Arkana Laboratories, Renal Pathology Teaching Points](https://www.arkanalabs.com/wp-content/uploads/Screen-Shot-2019-11-06-at-10.21.18-PM-432x288.png)
Membranous Glomerulopathy Subtyping
The diagnosis of membranous glomerulopathy has evolved rapidly in the past 10 years since the identification of PLA2R as the…
![Endocarditis-Associated Glomerulonephritis, arkana laboratories, renal pathology teaching points](https://www.arkanalabs.com/wp-content/uploads/Image-1-copy-7-432x288.jpg)
Endocarditis-Associated Glomerulonephritis
The patient is a 45-year-old IV drug user who presents with fevers, chills, hematuria, and fatigue. On laboratory testing, he…
![ALECT2 Amyloidosis, arkana laboratories, renal pathology](https://www.arkanalabs.com/wp-content/uploads/Image-1-copy-6-432x288.jpg)
ALECT2 Amyloidosis
The patient is a 75-year-old Hispanic male who presents with progressively worsening kidney function and a creatinine of 1.6 mg/dl…
![Arkana Laboratories, renal pathology, Membranous Nephropathy](https://www.arkanalabs.com/wp-content/uploads/Image-1-copy-5-432x288.jpg)
Resolving Membranous Nephropathy
A 40-year-old white male presents with 3 grams/24 hr of proteinuria and swelling around his ankles. He reports that he…
![Nucleated Red Blood, teaching point, arkana laboratories](https://www.arkanalabs.com/wp-content/uploads/Figure-1-copy-20-432x288.jpg)
Nucleated Red Blood Cells in Circulation
The patient is a 70-year-old male who presents with a creatinine of 5 mg/dl and a history of primary myelofibrosis.…
![HIVICK, arkana Laboratories, teaching point](https://www.arkanalabs.com/wp-content/uploads/Figure-1-copy-19-432x288.jpg)
HIVICK
The patient is a 24 year-old African American male who has recently been diagnosed with HIV infection. He has not…
![Methotrexate-induced acute kidney injury, Methotrexate-Induced Crystal Nephropathy, teaching points, Arkana Laboratories](https://www.arkanalabs.com/wp-content/uploads/Image-1-copy-4-432x288.jpg)
Methotrexate-Induced Crystal Nephropathy
The patient is a 50-year-old male who presents with a creatinine of 4.2 mg/dL (baseline 1.0 mg/dL). He has been…
![BK Nephritis, renal biopsy, kidney pathology, arkana laboratories](https://www.arkanalabs.com/wp-content/uploads/Figure-1-copy-18-432x288.jpg)
BK Nephritis
The patient is a 45-year-old male with a past medical history significant for ESKD secondary to IgA nephropathy S/P renal…
![Type 1 Cryoglobulinemic Glomerulonephritis, arkana laboratories](https://www.arkanalabs.com/wp-content/uploads/Image-1-copy-3-432x288.jpg)
Type 1 Cryoglobulinemic Glomerulonephritis
The patient is a 75 year-old female who presents with proteinuria, a necrotic skin lesion on her lower extremity, and…
![Membranous Lupus Nephritis, arkana laboratories, renal pathology, kidney biopsy](https://www.arkanalabs.com/wp-content/uploads/Image-1-copy-2-432x288.jpg)
Membranous Lupus Nephritis
The patient is a 19-year-old female who presents with hematuria, nephrotic range proteinuria, and a creatinine of 1.2 mg/dL. She…
![Waldenström's Macroglobulinemia, arkana laboratories, teaching points for renal pathology, kidney biopsy](https://www.arkanalabs.com/wp-content/uploads/Image-1-copy-432x288.jpg)
Waldenström’s Macroglobulinemia
A 57-year-old white male presents with fatigue, mild proteinuria, and a creatinine of 1.5 mg/dL. He was diagnosed with lymphoplasmacytic…
![Kappa Light Chain Cast Nephropathy, teaching point, Arkana Laboratories, renal pathology](https://www.arkanalabs.com/wp-content/uploads/Figure-1-copy-17-432x288.jpg)
Light Chain Cast Nephropathy
A 75-year-old female is found to have a creatinine of 4.0 mg/dL on a routine laboratory examination. At the hospital,…
![Membranous Nephropathy, renal diseases, kidney biopsy, arkana laboratories](https://www.arkanalabs.com/wp-content/uploads/Figure-1-copy-16-432x288.jpg)
Membranous Nephropathy After Transplantation
The biopsy shows a recurrent membranous nephropathy within a transplant. Figure 1 shows “spikes” and “holes.” Figure 2 shows mild…
![focal fibrinoid necrosis, IgA, Crescentic IgA Nephropathy, chronic kidney disease, Arkana Laboratories](https://www.arkanalabs.com/wp-content/uploads/Figure-1-copy-15-432x288.jpg)
Crescentic IgA nephropathy
Focal crescentic IgA nephropathy The patient is a 17-year-old white female who presents with 2.85 grams/24 hr proteinuria, microscopic hematuria,…