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Dr. med. vet. Katja Shell

Diplomate of the American College of Veterinary Internal Medicine – Large Animal

Diplomate of the European College of Equine Internal Medicine


Even as a child, I enjoyed horse riding and loved being around horses. As I got older, my passion for internal medicine and medical mysteries came along and the case developed. During my experiences abroad, I explored the world and was fascinated by what is possible in veterinary medicine. My mentors from the American College of Veterinary Internal Medicine taught me “as far as you want to go” and took me into the family of those who remained curious.

  • 2000

    High School
  • 2003

    Diploma business economist (BA)
  • 2009

    Graduation in veterinary medicine
  • 2009-2010

    Internship at Brazos Valley Equine Hospital in Navasota, Texas, USA
  • 2010-2012

    Research assistant in veterinary anatomy at the Justus Liebig University in Gießen
  • 2012-2015

    Equine Medicine Resident at Louisiana State University, USA
    Dipl. ACVIM 2016, Dipl. ECEIM 2017

  • 2015-2020

    Internist in der Pferdeklinik Leichlingen GmbH

  • 2018

    Fachtierarzt” internal medicine of the horse
  • 2020

    Founding of the specialty practice; Lecturer activity
  • Raabe, Shell, Würtz, Reich, Wenisch, Arnhold: Further insights into the characterization of equine adipose tissue-derived mesenchymal stem cells. Vet Res Commun. 2011 Aug;35(6):355-65.
  • Shell et al.: Comparison of Equine Adipose Tissue-Derived Stem Cell Behavior and Differentiation Potential Under the Influence of 3% and 21% Oxygen Tension. Journal of Equine Veterinary Science 33 (2013) 74-82.
  • Raabe and Shell et al.: Tenogenic differentiation of equine adipose-tissue-derived stem cells under the influence of tensile strain, growth differentiation factors and various oxygen tensions. Cell and Tissue Research 2013 Jun;352(3):509-21
  • Raabe and Shell et al.: Effect of extracorporeal shock wave on proliferation and differentiation of equine adipose tissue-derived mesenchymal stem cells in vitro. Am J Stem Cells. 2013 Mar 8;2(1):62-73.
  • Shell et al.: Effects of metronidazole and flunixin meglumine on equine right dorsal colonic mucosa. J Vet Intern Med 2014;28:976–1134.
  • Shell and Rijkenhuizen: Extensive and invasive guttural pouch granuloma in a 2-year-old gelding. EVE. 2018 July;
  • Bartel, Diekstall, Shell, Rijkenhuizen: Hand-assisted laparoscopic partial ovariohysterectomy in a standing mare suffering from a bleeding uterine leiomyoma. Pferdeheilkunde – Equine Medicine 6/2020: 495-501

  • Blatter, M., Medina-Torres, C. E., Shell, K., Rijkenhuizen, A. B., M.:  „Unilateral left-sided nephrectomy in a horse with utero-pyelonephritis”: Pferdeheilkunde- Equine Medicine 38 (2022) 1

Further Education
  • AAEP Congress in Las Vegas, NV 2009

  • World Congress for Regenerative Medicine in Leipzig 2011
  • ACVIM Congress in Nashville, TN 2014
  • ACVIM Congress in Denver, CO 2016
  • ACVIM Congress in Washington D.C. 2017
  • ECEIM Congress in Budapest 2017
  • ECEIM Congress in Gent 2018
  • ACVIM Congress in Phoenix, AZ 2019
  • ECEIM Congress in Valencia 2019
  • ACVIM Congress (online) 2020

  • ECEIM Congress (online) 2020

  • ACVIM Congress (online) 2021

  • ECEIM Congress (online) 2021

Pferdeinternistik Dr. med. vet. Katja Shell, Oberbüscherhof 33, 42799 Leichlingen
Phone: 0151-559 242 32, Email:

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