willows-cardiology-icon

What is Veterinary Internal Medicine?

willows-cardiology-icon

Veterinary internal medicine is a specialised field within veterinary care that focuses on diagnosing and treating a variety of complex diseases affecting your pet’s internal organs, including issues such as digestive disorders, cancer, and immune system problems. At Willows Veterinary Referral Centre, our internal medicine team members offer outstanding care to any pet referred to us, whilst providing expert advice and treatment.

It is important that for any veterinary internal medicine matter, that your pet’s records are up to date, and this is why the referral from your current veterinary clinician is essential. Our team will thoroughly assess any underlying conditions your pet may have and determine the most appropriate treatment and therapy.

Internal medicine often requires advanced diagnostic tools such as CT scans, blood tests, and ultrasounds. Rest assured, at Willows Veterinary Referral Centre, we are equipped with the latest technology to provide comprehensive and effective care for your pet.

CD-Logo-Dark

What is the Difference Between Veterinary Medicine and Internal Medicine?

Veterinary medicine is a comprehensive field that involves the care of pets, including diagnosing and treating illnesses, performing surgeries, and providing ongoing care in veterinary hospitals. It also includes veterinary internal medicine, which is a field under general medicine that manages serious diseases affecting pets and their internal organs.

Veterinary Medicine
General veterinary practice involves a wide range of services, from treating sick and injured animals to conducting surgeries and providing comprehensive care in various veterinary settings.

Veterinary Internal Medicine
Veterinary internal medicine, handled by a specialist known as an internist, focuses on intricate health issues and advanced care for pets. Internists are trained to conduct and interpret sophisticated tests and possess a deeper understanding of rare and complex diseases that may not be encountered in general practice or with routine exams.

To obtain board certification in veterinary internal medicine, a veterinarian must complete an undergraduate degree, four years of veterinary school, an internship, and a three-year residency in internal medicine.

willows-paw-vet-icon

How Our Internal Medicine Team Can Support Your Pet

At Willows Veterinary Referral Centre, our veterinary internal medicine team is dedicated to more than just addressing typical symptoms and providing standard veterinary treatments. We truly care about your pet’s well-being and approach their health with the same attention and compassion as if they were our own.

We specialise in diagnosing and managing a wide range of veterinary internal medical conditions that can affect various organs and systems in your pet’s body, including:

  • Digestive Issues: Whether your pet is dealing with acute diarrhoea or chronic inflammatory bowel disease, we offer thorough diagnostic services and customised treatment plans to your pet.
  • Endocrine Disorders: From Addison's disease and Cushing's syndrome to diabetes, we focus on maintaining hormonal balance to keep your pet’s health on track.
  • Respiratory Conditions: We help your pet breathe easier by diagnosing and treating respiratory problems like allergies and asthma with expert internal medicine care.
  • Kidney and Liver Health: Our advanced veterinary internal medicine care includes monitoring these vital organs and creating personalised treatment plans to ensure their proper function.
  • Immune System Problems: Our veterinary internal medicine team can help with immune system disorders, supporting your pet’s long-term health and overall quality of life.
  • Cancer Care: In collaboration with our veterinary oncology experts, at Willows Veterinary Referral Centre, we provide comprehensive cancer diagnostics, staging, and treatment options, including chemotherapy, tailored to your pet’s specific needs.

Additionally, our team can address other internal health concerns such as vomiting, diarrhoea, excessive thirst, lethargy, weight changes, anaemia, and fever, which could signal underlying issues. Find out how our expertise in veterinary internal medicine can make a difference for your pet, ensuring they receive the precise and compassionate care they deserve.

CD-Logo-Dark

Veterinary Internal Medicine for Dogs and Cats

Veterinary Internal Medicine for Dogs

Our veterinary internal medicine specialists are skilled in diagnosing and managing complex dog medical issues like respiratory diseases, gastrointestinal disorders, endocrine imbalances, and immune system problems. They provide customised treatment plans to enhance your dog's quality of life, using advanced diagnostic tools and expertise to ensure the highest standard of care.

Veterinary Internal Medicine for Cats

Cats often suffer from internal health issues like kidney disease, liver disorders, heart conditions, and urinary tract problems. Therefore, Willows Veterinary Referral Centre veterinary internal medicine experts have a deep understanding of feline physiology and can diagnose and treat these conditions. They focus on compassionate care and advanced treatment methods to improve your cat's health.

willows-paw-vet-icon

What to Expect During Your Visit

When you bring your pet to Willows Veterinary Referral Centre, you may expect expert care, from initial consultation to aftercare.

After your pet’s initial consultation, our internal medicine team may run further tests like blood work, radiographs, ultrasounds, or endoscopies to get a clearer picture of your pet’s condition.

In some cases, if we discover that your pet has a condition that needs specialised care, such as surgery or cancer treatment, we may refer them to another team within our hospital. Our veterinary Internal Medicine team is here to provide:

  • Detailed Consultations: We will take the time to thoroughly review your pet’s symptoms, medical history, and any diagnostic tests from your referring veterinarian to ensure we understand their condition fully.
  • Comprehensive Examinations: Beyond a physical exam, we also review any previous medical records to get a complete picture of your pet’s health. This is why is it very important that your pet is referred to us by their current veterinary clinician.
  • Tailored Treatment Plans: We work closely with you to create a treatment plan that fits your pet’s specific needs. This plan might involve further hospitalisation for monitoring, outpatient medication, or a mix of both, depending on what is best for your pet.
  • Transparent Communication: We keep you informed every step of the way, making sure you understand your pet’s diagnosis and the treatment options available. We understand that diagnosis may bring tense moments, but we are here to help.
  • Ongoing Aftercare: After your pet is discharged, our veterinary internal medicine team members at Willows Veterinary Referral Centre will provide detailed guidance and support to help them stay healthy and recover fully.

Our goal is to ensure your pet receives the best possible care and to support you throughout the process. For more information on our veterinary internal medicine treatments and care, do not hesitate to contact us at Willows.

Learn more about Willows Veterinary Referral Centre in our pet owners section.

Meet The Team

Prof. Mark Dunning

MA VetMB PhD CertSAM DipECVIM-CA FRCVS

Diplomate of the European College of Veterinary Internal Medicine

RCVS Recognised Specialist in Small Animal Medicine (Internal Medicine)

Head of Internal Medicine

Mark qualified from Cambridge in 1997 and spent time in both mixed and small animal practice. He began a residency in small animal medicine at the University of Liverpool in 2000 but interrupted this to undertake a PhD in Neuroscience at the University of Cambridge investigating the use of MRI to monitor the outcome of novel therapies for multiple sclerosis and spinal cord injury in humans. Following the completion of his PhD, Mark completed a residency in Small Animal Medicine at Cambridge. Mark then spent four years in private specialist practice in the south of England before moving to Nottingham Vet School as Clinical Associate Professor of Small Animal Internal Medicine. Mark was responsible for running the final year medicine rotation along with lecturing to all years of the veterinary course. He was responsible for the school’s small animal intern and residency programmes in addition to supervising both undergraduate and postgraduate research students. Mark holds the European Diploma in Small Animal Internal Medicine and is an RCVS and EBVS® recognised specialist in Small Animal Internal Medicine.

Mark remains actively involved in both undergraduate and post-graduate teaching via his ongoing role as Professor of Small Animal internal medicine at the School of Veterinary Medicine and Science, University of Nottingham. Mark remains research active both within the school and with national and international collaborators. These projects include investigations into canine breed-related diseases, canine cancer, canine and feline haematology, canine endocrine disease, how owners and vets make clinical decisions and the development of novel non-invasive biomarkers to help diagnose both simple and complex medical diseases in both primary care and referral settings. Mark lectures both nationally and internationally and has published widely in the field of veterinary medicine.

Mark has a broad interest in internal medicine but particularly enjoys the challenges posed by gastrointestinal, endocrine, haematology and renal medicine. Mark is excited to be joining the outstanding team at Willows and being able to provide both exceptional and compassionate care for the cats and dogs and their owners attending the clinic; along with providing an outstanding service to the referring veterinary surgeons. He particularly hopes to see lots of Norwegian Forest cats and Irish Wolfhounds, his absolute favourites!

Isuru Gajanayake

BVSc CertSAM DipACVIM (SAIM) DipECVIM-CA DipACVIM (Nutrition) MRCVS

Diplomate of the European College of Veterinary Internal Medicine, Diplomate of the American College of Veterinary Internal Medicine (Small Animal Internal Medicine, Nutrition)

RCVS Recognised Specialist in Small Animal Medicine (Internal Medicine)

Head of Clinical Nutrition

Isuru graduated from the University of Sydney in 1998.  After spending two years in mixed practice in rural Australia, he moved to the United Kingdom to work as a small animal vet locum and also travelled around Europe. He then joined Willows’ general practice clinic in 2002. During the following three years in this post, Isuru developed an interest in medicine and successfully completed the RCVS Certificate in Small Animal Medicine. In 2005, he moved to the Royal Veterinary College to undertake a one-year rotating Internship, followed by a combined Residency in small animal internal medicine and clinical nutrition. Isuru was the first resident to undertake a clinical nutrition training programme in the UK. Following the end of his residency, Isuru successfully achieved specialist status from the American College of Veterinary Internal Medicine in 2010. He became a diplomate of the American College of Veterinary Nutrition in 2016.

Isuru has a keen interest in all aspects of internal medicine but particularly enjoys dealing with immune-mediated and gastroenterology cases. He also enjoys the challenges involved in the nutrition of hospitalised patients, using both enteral and parenteral feeding techniques. In addition to his clinical duties, Isuru also enjoys teaching undergraduates, veterinary surgeons and nurses.

Isuru aims to provide the highest level of care for his patients, their owners and referring veterinary surgeons, and he thoroughly enjoys being part of the team at Willows who have the same commitment to the pets under their care.

Kirsty Roe

BVSc CertSAM DipACVIM (SAIM) DipECVIM-CA MRCVS

Diplomate of the European College of Veterinary Internal Medicine, Diplomate of the American College of Veterinary Internal Medicine (Small Animal Internal Medicine)

RCVS Recognised Specialist in Small Animal Medicine (Internal Medicine)

Kirsty graduated as a Veterinary Surgeon from the University of Bristol in 2000. She spent five years working in small animal practice in London and Northampton, where she developed an interest in canine and feline internal medicine. In 2005 she completed a Junior Clinical Fellowship in Internal Medicine at The Animal Health Trust in Newmarket and obtained the Royal College Certificate in Small Animal Medicine. Following this Kirsty completed a three year residency at The Royal Veterinary College in London and gained Diplomas of the American and European Colleges of Veterinary Internal Medicine. She is an RCVS Specialist in Small Animal Medicine and has worked at The Willows since 2009.

Kirsty enjoys both the challenge of the Internal Medicine discipline, and also the care element of her role with the seriously ill animals that she treats. She is particularly interested in endocrinology and gastroenterology. Kirsty very much enjoys being part of the top-notch team of multi-disciplinary specialists at Willows, and contributing to the high level of support and expert care provided for her patients, their owners and the referring veterinary surgeons who use Willows’ service.

Outside of work Kirsty has two young children who keep her entertained and on the go!

Fergus Allerton

BSc BVSc CertSAM DipECVIM-CA FRCVS

Diplomate of the European College of Veterinary Internal Medicine

RCVS Recognised Specialist in Small Animal Medicine (Internal Medicine)

Fergus graduated from the University of Bristol in 2004. He spent six years working in a mixed practice in Worcestershire. A keen interest in all things medical motivated Fergus to pursue the Royal College Certificate in Small Animal Medicine. He then spent three years undertaking a medicine residency at the University of Liege in Belgium studying for and, later gaining, the Diploma of the European College of Veterinary Internal Medicine.

Fergus is currently the chairman of the Small Animal Medicine Society (SAMSoc) and has been involved in the PROTECT ME initiative to encourage rational antibiotic use in small animal patients. He is currently editing the next edition of the BSAVA formulary. His particular interests include gall bladder disease (especially mucocoeles in Border Terriers), canine sinonasal aspergillosis, haematology, immune-mediated disease and antibiotic stewardship.

Fergus has a cat called Spartacus and a stick insect called Clive.

Bryn Jones

BVMedSci(Hons) BVM BVS PgCertVPS CertAVP PgDipVCP DipECVIM-CA MRCVS

Diplomate of the European College of Veterinary Internal Medicine

RCVS Recognised Specialist in Small Animal Medicine (Internal Medicine)

Bryn graduated from the University of Nottingham in 2014, and following this spent four years in a small animal hospital in Southwest Wales. It was during this time that he developed a passion for Medicine, which led him to undertake a Certificate alongside his job. Keen to expand this enthusiasm further, Bryn embarked first on an internship at the Royal Veterinary College, followed by a residency in small animal internal medicine at Anderson Moores Veterinary Specialists, which he completed in 2022. Bryn has a strong interest in all aspects of Internal Medicine, and has a particular focus on gastrointestinal and hepatic disease.

Outside of work, Bryn likes to spend time visiting his friends across the country and following sport, particularly his beloved Wales and West Ham. He lives with his partner and a very spoilt, ageing cat, and they plan to continue exploring this country and others. Bryn’s other interests include history, wargaming and cosy pubs.

Cameron Prior

MRCVS

Internal Medicine Resident

Cameron graduated from the University of Pretoria, South Africa, in 2017. Upon graduation, he spent three years working in a busy small animal practice where he did his fair share of spays, castrations, dental and even some orthopaedics. He decided that small animal medicine was definitely where his interests lay during this time.

Cameron then spent a year in Scotland doing a rotating internship. During this time, he also obtained his Masters in Small Animal Medicine, focusing on the prevalence of methicillin-resistant Staphylococcus pseudinteremedius in dogs with skin and ear infections. He is currently enrolled in an advanced practitioner certificate in small animal internal medicine. 

In November 2021, Cameron joined Willows to pursue his goal of completing specialist training in Small Animal Medicine, particularly enjoying endocrinology, infectious disease and antibiotic stewardship. 

At home, he lives with two obstinate but very well-loved Golden Retrievers, Lily and Finley. 

Lucy Yuan

MA VetMB MRCVS

Internal Medicine Resident

Lucy graduated from Cambridge University in 2018, and spent three and a half years working in two busy small animal practices in Bedfordshire and Staffordshire. During this time, she developed an interest in internal medicine, which led her to join Willows in 2022 as a rotating intern to gain further experience in emergency and routine cases.

Following the completion of her rotating internship, Lucy spent some time at Anderson Moores Veterinary Specialists as a medicine intern before re-joining Willows in 2023 to pursue further training as an internal medicine resident.

When not at work, Lucy enjoys hiking, baking and spending time with her two rescue cats, Jack and Pippa.

Jessica Dean

BVetMed(hons) CertAVP(SAM) MRCVS

Internal Medicine Resident

Jess graduated from the Royal Veterinary College in 2015, and went on to work in a busy small animal hospital in London where she developed a keen interest in small animal internal medicine and completed a post graduate certificate through the University of Liverpool.

Jess completed a rotating internship at Southfields Veterinary Specialists in 2021, followed by an internal medicine internship at London Vet Specialists in 2022. Following her internship she joined the Willows Internal Medicine team in November 2023 to pursue further training as an internal medicine resident.

When not at work Jess enjoys long distance running and yoga classes.

Internal Medicine

Find out more

To assist owners in understanding more about Internal Medicine we have put together a range of information sheets to talk you through the some of the more common Medicine conditions seen and treated by our Specialists.