Articles tagged "Histology"

2021 American Transplant Congress
Impact of Treatment of Subclinical Rejection at 2 Weeks After Kidney Transplantation, Compared by 1 Year Histologic Outcomes
O. Lee¹, K. Lee¹, J. Park¹, J. Lee², G. Kwon³, K. Kim⁴
¹Surgery, Samsung Medical Center, Seoul, Korea, Republic of, ²Medicine, Samsung Medical Center, Seoul, Korea, Republic of, ³Pathology, Samsung Medical Center, Seoul, Korea, Republic of, ⁴Biostatistics, Samsung Medical Center, Seoul, Korea, Republic of
*Purpose: Subclinical rejection (SCR) is associated with chronic allograft nephropathy, which is the most common cause of allograft failure in kidney transplantation (KT). Therefore, early…
2021 American Transplant Congress
Plasma Donor-Derived Cell-Free DNA Levels Risk-Stratify Kidney Allograft Injury with Isolated Transplant Glomerulitis
L. Bu¹, S. Anand², A. Pai³, J. S. Bromberg⁴, G. Gupta⁵, I. Moinuddin⁵, T. Alhamad⁶, V. Bowers⁷, S. Ghosh⁸, W. Tian⁸, E. Stites⁹
¹University of Minnesota, Minneapolis, MN, ²Intermountain Medical Center, Murray, UT, ³University of Texas McGovern Medical School, Houston, TX, ⁴University of Maryland School of Medicine, Baltimore, MD, ⁵Virginia Commonwealth University, Richmond, VA, ⁶Washington University in St. Louis, St. Louis, MO, ⁷Tampa General Hospital, Tampa, FL, ⁸CareDx, Brisbane, CA, ⁹University of Colorado, Aurora, CO
*Purpose: The Banff lesion Glomerulitis (g) characterizes the degree of microvascular glomerular inflammation. Some studies have demonstrated glomerulitis in the absence of C4d in association…
2021 American Transplant Congress
Treatment of Refractory Chronic Active Antibody-Mediated Rejection: Improvement in Histopathology are Delayed Compared to the Reduction in Donor Specific Antibodies
K. R. Degner¹, S. Parajuli¹, F. Aziz¹, N. Garg¹, M. Mohamed¹, D. A. Mandelbrot¹, S. E. Panzer¹, L. Hidalgo¹, N. A. Wilson¹, S. R. Reese¹, K. Van Hyfte¹, W. Zhong¹, P. Nickerson², A. Djamali¹
¹University of Wisconsin, Madison, WI, ²University of Manitoba, Winnipeg, MB, Canada
*Purpose: There are limited options for the treatment and management of refractory chronic active antibody-mediated rejection (cABMR) after kidney transplantation. Longitudinal histologic data in patients…
2021 American Transplant Congress
Association of Donor-Derived Cell-Free DNA with Severity of Interstitial Fibrosis and Cortical Atrophy Lesions Following Kidney Transplantation
L. Bu¹, E. Stites², V. Bowers³, T. Alhamad⁴, J. S. Bromberg⁵, G. Gupta⁶, I. Moinuddin⁶, S. Ghosh⁷, W. Tian⁷, A. Pai⁸, S. Anand⁹
¹University of Minnesota, Minneapolis, MN, ²University of Colorado, Aurora, CO, ³Tampa General Hospital, Tampa, FL, ⁴Washington University in St. Louis, St. Louis, MO, ⁵University of Maryland School of Medicine, Baltimore, MD, ⁶Virginia Commonwealth University, Richmond, VA, ⁷CareDx, Brisbane, CA, ⁸University of Texas McGovern Medical School, Houston, TX, ⁹Intermountain Medical Center, Murray, UT
*Purpose: The most common cause of kidney transplant (KT) failure is the poorly characterized histopathologic entity “interstitial fibrosis and tubular atrophy” (IFTA). There are no…
2020 American Transplant Congress
Efficacy of Radiofrequency Ablation in the Treatment of Patients with Hepatocellular Carcinoma and Compensated Liver Disease: A Pathological Evaluation of Liver Explants
W. Alhamoudi¹, I. Salih², S. Yousif², M. Shawkat³, K. Bzeizi², A. Albenmousa², S. Alghamdi², M. Sturdevant², D. Broering², H. Alsuhaibani²
¹Medicine, King Saud University, Riyadh, Saudi Arabia, ²Liver Transplant, King Faisal Specialist Hospital, Riyadh, Saudi Arabia, ³Internal Medicine, Minia University, Minia, Egypt
*Purpose: Radiofrequency ablation (RFA) is a safe and effective treatment for patients with limited hepatocellular carcinoma (HCC). Ablative outcomes have been largely based on radiological…
2020 American Transplant Congress
The Evolution and Impact of ABMR Histology and Transplant Glomerulopathy in the Presence or Absence of HLA-DSA
M. Coemans¹, A. Senev¹, G. Verbeke², M. Emonds¹, M. Naesens¹
¹Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium, ²Leuven Biostatistics and Statistical Bioinformatics Centre (L-BioStat), KU Leuven, Leuven, Belgium
*Purpose: After kidney transplantation, the occurrence of ABMRh (=histological picture of antibody-mediated rejection) and transplant glomerulopathy (cg) has been reported, both in the presence and…
2020 American Transplant Congress
The Composite Molecular and Cellular Instability Score Identifies the Sub-Phenotypes of Histologically Stable Kidney Transplants
D. Rychkov
Department of Surgery, BCHSI, University of California San Francisco, San Francisco, CA
*Purpose: Recent molecular studies have highlighted the unrecognized burden of sub-clinical graft rejection of a histologically stable allograft, defined as transplants with absence of clinical…
2020 American Transplant Congress
Risk of Histological Relapse in Patients with Monoclonal Gammopathy of Renal Significance after Kidney Transplantation
A. Bentall¹, C. Heybeli², F. G. Cosio¹, M. El Ters¹, N. Leung¹, M. P. Alexander³
¹Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, ²Department of Internal Medicine, Dokuz Eylul University, Izmir, Turkey, ³Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
*Purpose: There is increased recognition of Monoclonal Gammopathy of Renal Significance (MGRS) but data on kidney transplant (ktx)outcomes are lacking. We assessed KTX outcomes of…
2020 American Transplant Congress
Calibration of Donor-Derived Cell-Free DNA Criteria for Rejection with Molecular Diagnoses of Kidney Transplant Biopsies
I. Moinuddin¹, D. Kumar¹, L. Kamal¹, A. King¹, L. Kang¹, M. Levy¹, S. Bobba¹, D. Massey¹, P. Halloran², G. Gupta¹
¹Virginia Commonwealth University, Richmond, VA, ²Alberta Transplant Genomics Applied Centre, Edmonton, AB, Canada
*Purpose: Traditional microscopic histopathologic assessment (HDx) can be prone to error due to inter-observer variability as well as the non-specificity of some histologic lesions. Donor-derived…
2020 American Transplant Congress
Chronic Active T-Cell Mediated Rejection is Variably Responsive to Immunosuppressive Therapy
V. Kung¹, M. Haas¹, M. Gillespie², E. Huang², R. Sandhu²
¹Pathology, Cedars-Sinai Medical Center, Los Angeles, CA, ²Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, CA
*Purpose: Chronic active T cell-mediated rejection (CACMR) is a newly described variant of kidney allograft rejection associated with long-term graft loss. A key histologic feature…