Internists specialize in the diagnosis and treatment of complex disorders of the gastro-intestinal, pulmonary, renal (kidney), hepatic (liver), immunologic, hematolgic, cardiac (heart) and endocrine systems. Minimally invasive equipment and techniques, including ultrasound and endoscopy, are utilized to obtain a diagnosis. The internists work closely with your referring veterinarian to keep him or her aware of your pet’s diagnosis and treatment.