Megaesophagus is a condition in humans, cats and dogs where peristalsis fails to occur properly and the esophagus is enlarged. Megaesophagus can occur at any age as a puppy, or as an older dog. If it afflicts a puppy, the cause is usually genetic, or can be due to a surgically repairable condition called PRAA (Persistant Right Aortic Arch). If not secondary to another disorder in adult animals, it is called "idiopathic" (cause unknown). Megaesophagus can be secondary to other diseases such as Myasthenia Gravis, Thyroid, Addisons and other Neurological disorders. ============================================================================ POST is Copyrighted 2010. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================