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Trichrome Staining in Deposits
While the trichrome stain is best known for assessing the extent of interstitial fibrosis, it is a versatile stain with…
Tenofovir
A wide variety of prescription and over the counter drugs may cause toxic injury to the renal tubular epithelium. Given…
IgAN and Acute Tubular Injury with Legionella
Acute kidney injury in the setting of Legionella pneumonia. This biopsy is a middle-aged person with Legionella pneumonia who developed…
2,8-Dihydroxyadenuria
Adenine phosphoribosyltransferase (APRT) deficiency results from an autosomal recessive enzyme defect of purine metabolism and leads to 2,8-dihydroxyadenine (2,8-DHA) crystalline…
Extramedullary Hematopoiesis
This renal biopsy shows extramedullary hematopoiesis (EMH), which is the presence of hematopoietic elements (erythroid, myeloid, and/or megakaryocytic) found outside…
Pushing Glass (July 25, 2017)
The patient is a 64-year-old female who presents with 4.5 grams of proteinuria, hematuria, and a creatinine of 1.5. She…
Caseating Granuloma
Incidental findings on renal biopsies are not uncommon. The presented image shows a caseating granuloma within the renal medulla of…
Arkanines: Abby
Meet Abby! She’s a 13-week-old Airedale Terrier. She loves squeaky toys and naps, but does not enjoy being woken up…
Vascular Endothelial Growth Factor
The biopsy shown here is from a seven-year-old female with nephrotic syndrome. Her serum Cr was increased to 0.9 mg/dl…
IgA Transcriptomics
In this episode of Frontline Research Minute, we will briefly review the results of a recent paper investigating altered gene…
Acute Pyelonephritis
The renal biopsy image shows features characteristic of acute pyelonephritis. There is a neutrophil-rich interstitial inflammatory infiltrate and evidence of…
Walker Whimsy
I always feel like somebody’s watching me. Gail Walker keeps this place fun.
Client Spotlight: Drs. Fahim and Naeem Rahim
This month our Arkana Client Spotlight is on the Drs. Fahim and Naeem Rahim! Drs. Fahim and Naeem Rahim started…
