Title: Hypoplasia of dens

'''Hypoplasia of dens''' is a [[congenital]] non-formation of the pivot point of the second [[cervical vertebra]], which leads to [[spinal cord]] damage.&lt;ref name=KSU&gt;&quot;Hereditary and Congenital Diseases of Purebred Dogs.&quot;  Retrieved from {{cite web|url=http://www.vet.ksu.edu/studentorgs/Therio/pdf/Hereditary_Congenital.pdf |title=Archived copy |accessdate=March 13, 2007 |url-status=dead|archiveurl=https://web.archive.org/web/20070221132319/http://www.vet.ksu.edu/studentorgs/Therio/pdf/Hereditary_Congenital.pdf |archivedate=February 21, 2007 }} on 2007-03-13.&lt;/ref&gt;  Onset of the condition may occur at any age, producing signs ranging from neck pain to quadriplegia.&lt;ref&gt;&quot;Breed Predisposition to Disease and Congenital Conditions,&quot; ''Dr. Bob's All Creatures Site''.  Retrieved from http://www.petdoc.ws/BreedPre.htm on 2007-03-13.&lt;/ref&gt;  Hypoplasia of dens affects dogs.  It is more commonly seen in certain breeds, including the [[Chihuahua (dog)|Chihuahua]], the [[Papillon (dog)|Papillon]], the [[Pointer (dog breed)|Pointer]] and the [[Yorkshire Terrier]].&lt;ref name=KSU/&gt;

==References==
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[[Category:Dog musculoskeletal disorders]]

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