An unusual case of pheochromocytoma and unruptured abdominal aortic aneurism in a male Yorkshire terrier

Abstract

A six-year-old, male Yorkshire terrier was presented with acute vomiting, anorexia, depression, watery diarrhea and sudden blindness. On the basis of a transabdominal ultrasonographic examination, the presence of a prominent aortic aneurysm was established. The aneurysm of the aorta was confirmed at post-mortem examination. Unexpectedly, a pheochromocytoma of the left adrenal gland was found to be involved with the aneurysm. In this case report, the unusual occurrence of a large, unruptured abdominal aortic aneurism (AAA) concurrent with a pheochromocytoma in a male Yorkshire terrier dog is discussed.