[ SHOWGSD-L ] Re: Hemangiosarcoma

  • From: InquestGSD@xxxxxxx
  • To: showgsd-l@xxxxxxxxxxxxx
  • Date: Sat, 3 Jun 2006 21:21:45 EDT

From the National Canine Cancer Foundation:
 
Hemangiosarcoma 
Canine hemangiosarcoma is an incurable tumor of cells that line blood vessels 
 (endothelial cells). Based on current estimates of the lifetime risk of 
cancer  in dogs and the prevalence of hemangiosarcoma, we predict that of the 
73.9 
 million pet dogs living in the United States today, as many as two million 
may  get this cancer and die from it. Although dogs of any age and breed are  
susceptible to hemangiosarcoma, it occurs more commonly in dogs beyond middle  
age, and in breeds such as Golden Retrievers, German Shepherd Dogs, Portuguese 
 Water Dogs, and Skye Terriers, among others.
Hemangiosarcoma is extremely  indolent â?? that is, it develops slowly and is 
essentially painless â?? so clinical  signs are usually not evident until the 
advanced stages when the tumors are  resistant to most treatments. Less than 
50% 
of dogs treated with  standard-of-care of care for this tumor (surgery and 
intensive chemotherapy)  survive more than six months. Many dogs die from 
severe 
internal bleeding before  there is an opportunity to institute treatment. For 
this reason, our lab is  working to develop a test for early detection, which 
will allow us to diagnose  the disease before it is clinically evident. 

Similarly, a number of  novel approaches using targeted therapies and tumor 
vaccines to treat canine  hemangiosarcoma are in preclinical development or in 
the early stages of  clinical testing. 



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