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IZVG Pathology - Our Staff

A division of the International Zoo Veterinary Group

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About IZVG Pathology

IZVG Pathology Facilities & Services

IZVG Pathology Staff

Sample Collection and Fixation

Submission for Pathology and Diagnostics

Sample Packaging Guidelines

Submission of Bodies for Post-mortem

Practice News

IZVG Publications List

Mark Stidworthy MA VetMB PhD FRCPath MRCVS – Pathologist (RCVS Recognised Specialist in Veterinary Pathology (Zoo and Wildlife))

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Mark has been responsible for the pathology division of IZVG since 2003. He has pathology residency training and diagnostic experience from Liverpool and Cambridge Veterinary Schools, and completed his PhD, studying repair in the central nervous system, at Cambridge. Mark is a Fellow of the Royal College of Pathologists in the specialty of Veterinary Pathology, and an RCVS Recognised Specialist in Veterinary Pathology (Zoo and Wildlife). Mark is the current President of the British Veterinary Zoological Society, was the Founder Secretary of the British Society of Veterinary Pathology. He and speaks and publishes regularly in the field of zoo and wildlife pathology.

Please find a Mark's list of publications here.

Daniela Denk Dr med vet DiplECVP MRCVS - European Veterinary Specialist in Pathology, RCVS Recognised Specialist in Veterinary Pathology (Zoo and Wildlife)

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Daniela joined the practice in March 2011. After graduating from the Veterinary School of Munich University, Germany in 2006, she began her pathology training and wrote her thesis on dermatopathological alterations in canine atopic dermatitis. Daniela completed her pathology residency at Liverpool University and is a Diplomate of the European College of Veterinary Pathologists and a RCVS Recognised Specialist in Veterinary Pathology (Zoo and Wildlife). In addition to her focus on zoo- and wildlife pathology, she maintains her interests in neuropathology and dermatology. She is an active member of the European Society of Veterinary Pathologists, and the International Society of Veterinary Dermatopathologists. Daniela is a pathology advisor to the EEHV advisory group. She speaks and publishes regularly in the field of zoo and wildlife pathology.

Please find Daniela’s list of publications here.



Dr Cheryl Sangster

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From May 2017, the IZVG pathologists have been joined by Dr Cheryl Sangster, who is based off-site reporting histopathology cases across all species. Cheryl is a highly qualified veterinary pathologist with considerable prior experience in zoo and wildlife species, and will be collaborating closely with our two existing pathologists. Find out more about Cheryl here.



The laboratory facilities of IZVG Pathology are located at Nationwide Laboratories near Leeds in Yorkshire. Graduate biologist Neil Wagstaffe, who has worked part-time for the practice since January 2007, provides technical support for our two pathologists.

E-mail the pathology department:pathologists@izvg.co.uk



International Zoo Veterinary Group is a trading name of IZVG LLP, a limited liability partnership no. OC361054, registered England

IZVG supports Wildlife Vets International registered charity no. 1109670
Veterinary support for conservation worldwide
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