The authors declare no conflict of interest.
Simultaneous pheochromocytoma and third-degree atrioventricular block in 2 dogs
Article first published online: 19 SEP 2013
© Veterinary Emergency and Critical Care Society 2013
Journal of Veterinary Emergency and Critical Care
Volume 23, Issue 6, pages 610–614, November/December 2013
How to Cite
Mak, G. and Allen, J. (2013), Simultaneous pheochromocytoma and third-degree atrioventricular block in 2 dogs. Journal of Veterinary Emergency and Critical Care, 23: 610–614. doi: 10.1111/vec.12101
- Issue published online: 4 DEC 2013
- Article first published online: 19 SEP 2013
- Manuscript Accepted: 4 AUG 2013
- Manuscript Received: 3 MAR 2012
- adrenal tumors;
- AV block;
To describe the occurrence of pheochromocytoma with third-degree atrioventricular (AV) block in 2 dogs.
Case Series Summary
Two dogs were referred for echocardiograms and further diagnostic and therapeutic treatment for third-degree AV block. Abdominal ultrasound of 1 dog revealed an adrenal mass, while that of the other dog revealed bilateral adrenal masses. While undergoing treatment, 1 dog experienced cardiac arrest and could not be revived with cardiopulmonary resuscitation, and the other dog was humanely euthanized. Histological findings of the masses were consistent with pheochromocytomas.
New or Unique Information Provided
To the authors’ knowledge, this is the first report with histologic evidence of pheochromocytoma and clinical presentation of third-degree AV block in dogs. In human literature, simultaneous presentation of both disease states is rare and has been infrequently reported.