Grace Choung, MD 박영이
@gracechoung.bsky.social
Renal pathologist @CedarsSinai
#renalpath #kidneydisease
opinions are my own
#renalpath #kidneydisease
opinions are my own
Reposted by Grace Choung, MD 박영이
supplements are mostly useless, and sometimes dangerous?
stones of silica?
www.acpjournals.org/doi/10.7326/...
what do you make of this @weddellite.bsky.social ? there is a similar @ajkd.bsky.social case report too pubmed.ncbi.nlm.nih.gov/19100669/
stones of silica?
www.acpjournals.org/doi/10.7326/...
what do you make of this @weddellite.bsky.social ? there is a similar @ajkd.bsky.social case report too pubmed.ncbi.nlm.nih.gov/19100669/
Silica Nephrolithiasis From Commonly Used Over-the-Counter Vitamins and Supplements: A Case Report | Annals of Internal Medicine: Clinical Cases
Silica and calcium carbonate are very rare constituents of renal calculi, historically associated with chronic ingestion of magnesium trisilicate. We present a case of silica and calcium carbonate fir...
www.acpjournals.org
February 13, 2026 at 11:57 PM
supplements are mostly useless, and sometimes dangerous?
stones of silica?
www.acpjournals.org/doi/10.7326/...
what do you make of this @weddellite.bsky.social ? there is a similar @ajkd.bsky.social case report too pubmed.ncbi.nlm.nih.gov/19100669/
stones of silica?
www.acpjournals.org/doi/10.7326/...
what do you make of this @weddellite.bsky.social ? there is a similar @ajkd.bsky.social case report too pubmed.ncbi.nlm.nih.gov/19100669/
Outcomes in children and adults with antiglomerular basement membrane disease - Kidney International Reports www.kireports.org/article/S246...
Outcomes in children and adults with antiglomerular basement membrane disease
Anti-glomerular basement membrane (anti-GBM) disease is a rare, small-vessel vasculitis
due to antibodies targeting the glomerular and alveolar capillaries, leading to rapidly
progressive glomerulonep...
www.kireports.org
February 13, 2026 at 4:17 PM
Outcomes in children and adults with antiglomerular basement membrane disease - Kidney International Reports www.kireports.org/article/S246...
Albumin/Keratin casts obstruct renal tubular and vascular lumens following kidney ischemia. - Kidney International Reports www.kireports.org/article/S246...
Albumin/Keratin casts obstruct renal tubular and vascular lumens following kidney ischemia.
We have recently reported that in ischemic acute kidney injury (AKI), red blood cell
(RBC) trapping causes fluid extravasation from the congested capillary circulation
and subsequent toxic injury to t...
www.kireports.org
February 13, 2026 at 4:15 PM
Albumin/Keratin casts obstruct renal tubular and vascular lumens following kidney ischemia. - Kidney International Reports www.kireports.org/article/S246...
The Oxford Classification Should Remain the Gold Standard for Classification of IgA Nephropathy
journals.lww.com/kidney360/ci...
#renalpath #pathsky #nephsky #nephrology
journals.lww.com/kidney360/ci...
#renalpath #pathsky #nephsky #nephrology
journals.lww.com
February 13, 2026 at 4:14 PM
The Oxford Classification Should Remain the Gold Standard for Classification of IgA Nephropathy
journals.lww.com/kidney360/ci...
#renalpath #pathsky #nephsky #nephrology
journals.lww.com/kidney360/ci...
#renalpath #pathsky #nephsky #nephrology
Reposted by Grace Choung, MD 박영이
Recurrence of C3 Glomerulopathy and Immune Complex–Mediated Membranoproliferative Glomerulonephritis After #Kidney #Transplantation: Challenges and Opportunities
https://doi.org/10.1016/j.ekir.2025.11.008
#C3Glomerulopathy #KIRReview
https://doi.org/10.1016/j.ekir.2025.11.008
#C3Glomerulopathy #KIRReview
February 11, 2026 at 6:01 PM
Recurrence of C3 Glomerulopathy and Immune Complex–Mediated Membranoproliferative Glomerulonephritis After #Kidney #Transplantation: Challenges and Opportunities
https://doi.org/10.1016/j.ekir.2025.11.008
#C3Glomerulopathy #KIRReview
https://doi.org/10.1016/j.ekir.2025.11.008
#C3Glomerulopathy #KIRReview
Reposted by Grace Choung, MD 박영이
Seronegative Cryoglobulinemic Glomerulonephritis Coexisting With Primary Sjögren’s Syndrome and HBV Infection: A Diagnostic and Therapeutic Challenge
#nephsky #nephrology
www.kidneymedicinejournal.org/article/S259...
#nephsky #nephrology
www.kidneymedicinejournal.org/article/S259...
Seronegative Cryoglobulinemic Glomerulonephritis Coexisting With Primary Sjögren’s Syndrome and HBV Infection: A Diagnostic and Therapeutic Challenge
Cryoglobulinemic glomerulonephritis (CryoGN) is most often caused by mixed cryoglobulinemia
(MC), encompassing both type II and type III forms. CryoGN is commonly associated
with HCV infection or prim...
www.kidneymedicinejournal.org
February 12, 2026 at 7:57 AM
Seronegative Cryoglobulinemic Glomerulonephritis Coexisting With Primary Sjögren’s Syndrome and HBV Infection: A Diagnostic and Therapeutic Challenge
#nephsky #nephrology
www.kidneymedicinejournal.org/article/S259...
#nephsky #nephrology
www.kidneymedicinejournal.org/article/S259...
Reposted by Grace Choung, MD 박영이
Nephrocalcinosis secondary to a parathyroid adenoma
doi.org/10.1016/j.kint.2025.07.030
#NephSky #MedSky #AKI #kidneybiopsy #renalpath #kidneypath
doi.org/10.1016/j.kint.2025.07.030
#NephSky #MedSky #AKI #kidneybiopsy #renalpath #kidneypath
February 12, 2026 at 1:27 PM
Nephrocalcinosis secondary to a parathyroid adenoma
doi.org/10.1016/j.kint.2025.07.030
#NephSky #MedSky #AKI #kidneybiopsy #renalpath #kidneypath
doi.org/10.1016/j.kint.2025.07.030
#NephSky #MedSky #AKI #kidneybiopsy #renalpath #kidneypath
Reposted by Grace Choung, MD 박영이
Kidney biopsy day, real-time renal US-guided; adequacy verification, cortex obtained, glomeruli visualized. Come join us to learn more about this in the #KidneyBiopsyAcademy hands-in workshop at @kidneycon.bsky.social 2026
February 10, 2026 at 1:07 AM
Kidney biopsy day, real-time renal US-guided; adequacy verification, cortex obtained, glomeruli visualized. Come join us to learn more about this in the #KidneyBiopsyAcademy hands-in workshop at @kidneycon.bsky.social 2026
Reposted by Grace Choung, MD 박영이
Resurfacing the two latest #KPMP publications for you to read this week 📚
#CJASN #KidneyMedicine #CKD #Protein #Histopathology #Imaging #Research #NewScience
@asnpublications.bsky.social
www.kidneymedicinejournal.org/article/S259...
journals.lww.com/cjasn/abstra...
#CJASN #KidneyMedicine #CKD #Protein #Histopathology #Imaging #Research #NewScience
@asnpublications.bsky.social
www.kidneymedicinejournal.org/article/S259...
journals.lww.com/cjasn/abstra...
Case Series of Histopathological Findings in Chronic Kidney Disease: Insights From the Kidney Precision Medicine Project
The Kidney Precision Medicine Project is obtaining kidney biopsies from people with
chronic kidney disease (CKD) and acute kidney injury for comprehensive clinical, histopathological,
and molecular ch...
www.kidneymedicinejournal.org
February 9, 2026 at 5:49 PM
Resurfacing the two latest #KPMP publications for you to read this week 📚
#CJASN #KidneyMedicine #CKD #Protein #Histopathology #Imaging #Research #NewScience
@asnpublications.bsky.social
www.kidneymedicinejournal.org/article/S259...
journals.lww.com/cjasn/abstra...
#CJASN #KidneyMedicine #CKD #Protein #Histopathology #Imaging #Research #NewScience
@asnpublications.bsky.social
www.kidneymedicinejournal.org/article/S259...
journals.lww.com/cjasn/abstra...
Reposted by Grace Choung, MD 박영이
Somewhat subtle case of light chain cast nephropathy by LM. Mostly fine granular casts. Rare PAS pale + two toned color casts. No cellular reaction. IF with K restricted casts confirmatory. EM demonstrates LC precipitation with uromodulin. #renalpath #nephsky #pathsky
February 9, 2026 at 4:32 PM
Somewhat subtle case of light chain cast nephropathy by LM. Mostly fine granular casts. Rare PAS pale + two toned color casts. No cellular reaction. IF with K restricted casts confirmatory. EM demonstrates LC precipitation with uromodulin. #renalpath #nephsky #pathsky
Reposted by Grace Choung, MD 박영이
Interesting case of necrotizing vasculitis in a lupus patient. Hx of LN in prior biopsies, no active GN features now. May be lupus vasculitis, but recommend r/o superimposed vasculitic disease (e.g., ANCA, drugs) with such biopsies findings. #renalpath #nephsky #pathsky
February 8, 2026 at 6:05 PM
Interesting case of necrotizing vasculitis in a lupus patient. Hx of LN in prior biopsies, no active GN features now. May be lupus vasculitis, but recommend r/o superimposed vasculitic disease (e.g., ANCA, drugs) with such biopsies findings. #renalpath #nephsky #pathsky
Reposted by Grace Choung, MD 박영이
Tumor nephrectomy with incidental ALECT2. Interestingly this was from a pt from India. Reminder that a subset of ALECT2 cases have been reported in Punjabi patients (pubmed.ncbi.nlm.nih.gov/35986199/) . #renalpath #pathsky #nephsky
February 6, 2026 at 7:31 PM
Tumor nephrectomy with incidental ALECT2. Interestingly this was from a pt from India. Reminder that a subset of ALECT2 cases have been reported in Punjabi patients (pubmed.ncbi.nlm.nih.gov/35986199/) . #renalpath #pathsky #nephsky
Reposted by Grace Choung, MD 박영이
Renal biopsy findings in psoriasis patients with renal involvement: a descriptive clinicopathologic study
#nephsky #nephrology
link.springer.com/article/10.1...
#nephsky #nephrology
link.springer.com/article/10.1...
Renal biopsy findings in psoriasis patients with renal involvement: a descriptive clinicopathologic study - BMC Nephrology
BMC Nephrology - Psoriasis is a chronic inflammatory skin disease increasingly recognized for its systemic involvement, particularly renal impairment. However, the pathological spectrum of kidney...
link.springer.com
February 5, 2026 at 9:24 AM
Renal biopsy findings in psoriasis patients with renal involvement: a descriptive clinicopathologic study
#nephsky #nephrology
link.springer.com/article/10.1...
#nephsky #nephrology
link.springer.com/article/10.1...
Reposted by Grace Choung, MD 박영이
Role of lupus nephritis classification systems in everyday clinical practice: a questionnaire-based survey of the Renal Pathology Society (RPS)
doi.org/10.1093/ckj/...
doi.org/10.1093/ckj/...
Role of lupus nephritis classification systems in everyday clinical practice: a questionnaire-based survey of the Renal Pathology Society (RPS)
AbstractBackground. Kidney biopsy is the gold standard for lupus nephritis (LN) diagnosis, with the 2018 International Society of Nephrology/Renal Patholog
doi.org
February 5, 2026 at 8:17 AM
Role of lupus nephritis classification systems in everyday clinical practice: a questionnaire-based survey of the Renal Pathology Society (RPS)
doi.org/10.1093/ckj/...
doi.org/10.1093/ckj/...
Reposted by Grace Choung, MD 박영이
Leucocyte tickling a tubular epithelial cells in a case of cellular rejection in a txp biopsy. Can anyone with more immunology knowledge than me explain what is happening here? #renalpath #nephsky #pathsky
February 5, 2026 at 2:37 PM
Leucocyte tickling a tubular epithelial cells in a case of cellular rejection in a txp biopsy. Can anyone with more immunology knowledge than me explain what is happening here? #renalpath #nephsky #pathsky
Bone Marrow Examination in Proliferative Glomerulonephritis with Monoclonal Ig Deposition: A Serology-Based Approach - Kidney International Reports www.kireports.org/article/S246...
#pathsky #nephsky #nephrology
#pathsky #nephsky #nephrology
Bone Marrow Examination in Proliferative Glomerulonephritis with Monoclonal Ig Deposition: A Serology-Based Approach
Recent data indicate that nearly 80% of cases of proliferative glomerulonephritis
with monoclonal immunoglobulin deposits (PGNMID) lack a monoclonal etiology, as shown
by sensitive immunoglobulin repe...
www.kireports.org
February 5, 2026 at 3:41 PM
Bone Marrow Examination in Proliferative Glomerulonephritis with Monoclonal Ig Deposition: A Serology-Based Approach - Kidney International Reports www.kireports.org/article/S246...
#pathsky #nephsky #nephrology
#pathsky #nephsky #nephrology
Reposted by Grace Choung, MD 박영이
#RenalPath: Glomerulonephritis with dominant C3 showing contour duplication of glomerular basement membranes (Jones silver stain).
bit.ly/2Jto75d (FREE)
bit.ly/2Jto75d (FREE)
January 25, 2026 at 5:00 PM
#RenalPath: Glomerulonephritis with dominant C3 showing contour duplication of glomerular basement membranes (Jones silver stain).
bit.ly/2Jto75d (FREE)
bit.ly/2Jto75d (FREE)
Reposted by Grace Choung, MD 박영이
February 1, 2026 at 5:00 PM
Reposted by Grace Choung, MD 박영이
Low-grade proteinuria, whether assessed at baseline or over time, is an important predictor of kidney disease progression in patients with IgA nephropathy #IgAN ca. 2026 from @asnpublications.bsky.social
#Nephpearls #NephSky
👉🏼 pubmed.ncbi.nlm.nih.gov/41385286/
#Nephpearls #NephSky
👉🏼 pubmed.ncbi.nlm.nih.gov/41385286/
February 3, 2026 at 2:11 PM
Low-grade proteinuria, whether assessed at baseline or over time, is an important predictor of kidney disease progression in patients with IgA nephropathy #IgAN ca. 2026 from @asnpublications.bsky.social
#Nephpearls #NephSky
👉🏼 pubmed.ncbi.nlm.nih.gov/41385286/
#Nephpearls #NephSky
👉🏼 pubmed.ncbi.nlm.nih.gov/41385286/
Reposted by Grace Choung, MD 박영이
Heat shock protein 70s are modifiers of endothelial function in Fabry disease
doi.org/10.1016/j.kint.2026.01.004
#NephSky #MedSky #OpenAccess @umichmedicalschool.bsky.social @omrf.bsky.social
doi.org/10.1016/j.kint.2026.01.004
#NephSky #MedSky #OpenAccess @umichmedicalschool.bsky.social @omrf.bsky.social
February 3, 2026 at 3:19 PM
Heat shock protein 70s are modifiers of endothelial function in Fabry disease
doi.org/10.1016/j.kint.2026.01.004
#NephSky #MedSky #OpenAccess @umichmedicalschool.bsky.social @omrf.bsky.social
doi.org/10.1016/j.kint.2026.01.004
#NephSky #MedSky #OpenAccess @umichmedicalschool.bsky.social @omrf.bsky.social
Reposted by Grace Choung, MD 박영이
Intermittent dark urine in a school-aged boy: a case of alkaptonuria
doi.org/10.1016/j.kint.2025.07.035
#NephSky #MedSky #PedsNeph #PathSky
doi.org/10.1016/j.kint.2025.07.035
#NephSky #MedSky #PedsNeph #PathSky
February 3, 2026 at 3:43 PM
Intermittent dark urine in a school-aged boy: a case of alkaptonuria
doi.org/10.1016/j.kint.2025.07.035
#NephSky #MedSky #PedsNeph #PathSky
doi.org/10.1016/j.kint.2025.07.035
#NephSky #MedSky #PedsNeph #PathSky
Reposted by Grace Choung, MD 박영이
T-cell lymphoblastic lymphoma presenting with type B lactic acidosis and acute kidney injury in an adolescent
T-cell lymphoblastic lymphoma presenting with type B lactic acidosis and acute kidney injury in an adolescent - Pediatric Nephrology
Acute kidney injury (AKI) in children is a major cause of morbidity and mortality and is most commonly associated with dehydration, sepsis, or nephrotoxic exposures. In rare instances, however,…
buff.ly
January 31, 2026 at 4:00 PM
T-cell lymphoblastic lymphoma presenting with type B lactic acidosis and acute kidney injury in an adolescent
Reposted by Grace Choung, MD 박영이
Female, 40 yo, LES class IV, cr 3.11 (previous 0.8), hematuria, proteinuria.
U-Sed: RBC cast, presence of leukocytes (glitter cells?)
#Urinarysediment #urineMicroscopy
U-Sed: RBC cast, presence of leukocytes (glitter cells?)
#Urinarysediment #urineMicroscopy
January 31, 2026 at 5:55 PM
Female, 40 yo, LES class IV, cr 3.11 (previous 0.8), hematuria, proteinuria.
U-Sed: RBC cast, presence of leukocytes (glitter cells?)
#Urinarysediment #urineMicroscopy
U-Sed: RBC cast, presence of leukocytes (glitter cells?)
#Urinarysediment #urineMicroscopy
The long and the short of it: how CUBN isoforms are affected by genetic variants - Kidney International Reports www.kireports.org/article/S246...
The long and the short of it: how CUBN isoforms are affected by genetic variants
The loss of proteins into the urine (proteinuria) is an important risk factor for
renal and cardiovascular disease. In particular, albuminuria is associated with an
increased risk of chronic kidney di...
www.kireports.org
January 31, 2026 at 5:01 PM
The long and the short of it: how CUBN isoforms are affected by genetic variants - Kidney International Reports www.kireports.org/article/S246...
Persistent ANCA Positivity in Granulicatella adiacens-associated Endocarditis: Diagnostic Implications of Methodological Variability - Kidney International Reports www.kireports.org/article/S246...
#pathsky #nephsky #nephrology
#pathsky #nephsky #nephrology
Persistent ANCA Positivity in Granulicatella adiacens-associated Endocarditis: Diagnostic Implications of Methodological Variability
We read with great interest the article by Andeen et al.1 on Bartonella endocarditis–associated
glomerulonephritis as a mimicker of autoimmunity and vasculitis. Although antineutrophil
cytoplasmic aut...
www.kireports.org
January 31, 2026 at 7:27 AM
Persistent ANCA Positivity in Granulicatella adiacens-associated Endocarditis: Diagnostic Implications of Methodological Variability - Kidney International Reports www.kireports.org/article/S246...
#pathsky #nephsky #nephrology
#pathsky #nephsky #nephrology