Lois Johanna Arend, M.D., Ph.D.

Headshot of Lois Johanna Arend
  • Director, Pathology Clinical Fellowship Programs
  • Associate Professor of Pathology


Pathology, Renal Pathology, Transplant Pathology

Research Interests

Renal and Transplant pathology


The Johns Hopkins Hospital (Main Entrance)

1800 Orleans St.
Sheikh Zayed Tower
Baltimore, MD 21287
Phone: 410-955-9790
The Johns Hopkins Hospital (Main Entrance) - Google Maps


Dr. Lois Arend is an associate professor of pathology at the Johns Hopkins University School of Medicine. Her areas of clinical expertise include renal pathology and transplant pathology. Dr. Arend serves as the program director of the Renal Pathology fellowship training program and is director of the Pathology Department clinical fellowships.

Dr. Arend earned her Ph.D. and M.D. from Michigan State University. She completed her residency in Anatomic Pathology and fellowship in Renal Pathology at the University of Michigan Medical School.

Her research interests include renal and transplant pathology. She is on the Editorial Boards of Modern Pathology, BMC Nephrology and Kidney360.

Dr. Arend was Treasurer of the Renal Pathology Society (RPS) from 2015-2019, was elected Councilor for 2019-2021, Vice-President for 2022, and is currently RPS President.

...read more


  • Director, Pathology Clinical Fellowship Programs
  • Program Director, Renal Pathology Fellowship Training Program
  • Associate Professor of Pathology

Departments / Divisions

  • Pathology - Kidney-Urologic Pathology

Centers & Institutes



  • MD; Michigan State University College of Human Medicine (1992)


  • Pathology; University of Michigan Medical School (1996)


  • Pathology; University of Michigan Medical School (1998)

Board Certifications

  • American Board of Pathology (Anatomic Pathology) (1995)

Additional Training

Dr. Arend is an International Society of Nephrology Educational Ambassador and has assisted pathologists in Mongolia and Ethiopia to establish Nephropathology diagnostic services for their countries.

Research & Publications

Research Summary

Dr. Arend's research interests are in the area of pathologic aspects of kidney disease.

Selected Publications

View all on PubMed

Gupta RK, Rosenberg AZ, Bagnasco SM, Arend LJ. Renal crystal-storing histiocytosis involving glomeruli - A comprehensive clinicopathologic analysis. Ann Diagn Pathol. 2019 Aug 29; 43:151403. doi: 10.1016/j.anndiagpath.2019.151403. [Epub ahead of print]. PMID: 31494491

Costigliolo F, Lombardo K, Arend LJ, Rosenberg AZ, Matoso A, Carter-Monroe N, Bagnasco SM. BK Virus RNA in Renal Allograft Biopsies. J Histochem Cytochem. 2020 May;68(5):319-325. doi: 10.1369/0022155420922604. Epub 2020 Apr 30. PMID: 32352851

Wilson AV, Costigliolo F, Farris AB, Rengen R, Arend LJ. Collagen type III glomerulopathy. Kidney Int Rep. 2021 June; 6(6):1738-1742. doi.org/10.1016/j.ekir.2021.03.887. PMID: 34169215

Uner M, Demirkol S, Arend LJ. Quality Assurance: Evaluation and comparison of methods for electron microscopic measurement of GBM width and the effect of in-lab calibration in diagnostic renal pathology. Microsc Res Tech. 2022 Jan;85(1):290-295. doi: 10.1002/jemt.23904. Epub 2021 Aug 12. PMID: 34387014 

Giannini G, Arend LJ. The prevalence of mesangial deposits in PLA2R-positive membranous nephropathy. Nephron. 2021 Nov 19:1-5. doi: 10.1159/000519912. PMID: 3480200

Activities & Honors


  • Renal Pathology Society
  • American Society of Nephrology
  • International Society of Nephrology
  • United States & Canadian Academy of Pathology
Is this you? Edit Profile
back to top button