- MULTIPLE PHEOCHROMOCYTOMA
- MD DEPT. OF AG FREDERICK ANIMAL HEALTH LAB
- Pheochromocytomas are extremely uncommon in swine. They have been reported in many species and appear to be most popular in laboratory rodents and dogs, but cattle and horses may be affected as well. Most are usually silent, but they may be associated with non-specific signs such as tachycardia, hyperactivity or sweating. They are a common finding in various syndromes of multiple endocrine neoplasia (MEN) in humans and animals. Medullary hyperplasia has also been documented in number of species., and malignant pheochromcytomas have been very rarely identified in swine.