Disproportionate Dwarfism in Dogs

Category: Bone & Joint
Breeds documented: 1
Published sources: 4

Overview

Disproportionate dwarfism describes short stature with altered body proportions, rather than a dog that is simply small all over. In a hereditary form studied in Dogo Argentino dogs, the legs were shortened and the forelegs bent outward. Abnormal growth at the ends of the forearm bones affected joint alignment and walking. Researchers identified a PRKG2 gene variant as a likely cause of this familial form.

Signs to watch for

Unusually short legs for the body size
Forelegs that bend or turn outward
An abnormal way of walking

In the reported Dogo Argentino family, skeletal changes became apparent at 2 months.

When to get help Book a vet visit if your puppy develops an abnormal gait.

Diagnosis and tests

Vets examine body proportions and use X-rays to assess limb shape and the growth plates, where young bones lengthen. In the reported Dogo Argentino family, imaging showed early closure of a forearm growth plate. Genetic analysis identified a PRKG2 variant as a likely explanation for this familial form of dwarfism.

Breeds with documented risk

1 breed

By breed size

1 Large

Dogo ArgentinoLarge · Working Group

Inheritance

Not yet known
None of the sources we use states how this is inherited in dogs yet.

We've gathered what published sources say about this condition, so you can talk it through with your vet. It isn't veterinary advice: you and your vet know your dog best.