What is an internal medicine specialist?
Simply put, internal medicine focuses on diagnosing and treating diseases that affect a pet’s internal organs and body systems. These conditions can involve the digestive tract, kidneys, liver and gallbladder, spleen, pancreas, hormone glands, lungs, heart, and more. Because many of these problems can be complex, internal medicine specialists are trained to investigate difficult or multifaceted cases using advanced diagnostic and treatment techniques.
To become a board-certified internal medicine specialist, a veterinarian must complete several years of advanced training after veterinary school. This includes at least a one-year internship followed by a three-year residency in small animal internal medicine, the successful completion of two rigorous board examinations, and the publication of original research in a peer-reviewed medical journal. Only after fulfilling all these requirements can a veterinarian earn the title of board-certified small animal internal medicine specialist.
What is a veterinary oncologist?
Oncology is the practice of diagnosis and treatment of cancer. This includes both benign and malignant tumors anywhere inside and outside the body. A variety of treatment options are available depending on the type and location of the tumor, 
and veterinary oncologists are the foremost experts in determining the best treatment option(s) available for pets.
Veterinary cancer treatment is a rapidly changing field of medicine, and a veterinary oncologist is at the forefront of this information to maintain state-of-the-art treatment for their patients. Like internal medicine specialists, becoming a Veterinary Oncologist requires both an internship and three-year residency followed by successful completion of two board examinations as well as publication of a clinical research paper in a peer-reviewed medical journal.