Disproportionate Dwarfism


This disease is characterized by the abnormal growth, development, and remodeling of bones and cartilage. Disproportionate dwarfism involves relative length alterations of the limbs and changes in body proportions which may be visible as short limbs when compared to body length and/or as an enlarged head.

  • Signs and symptoms

    Affected dogs may display mild to severe disproportionate dwarfism. Limb shortening with increased angular deformities (e.g., outward turning of the paws), gait abnormalities, a relatively broad face, and an upward-turned nose may be observed.

    Limb deformities become evident at a few months of age. Facial and body deformities may not be recognizable until early adulthood.

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  • Diagnosis

    A diagnosis is made based on clinical examination, X-rays, and genetic testing.

  • Treatment

    There is no recommended treatment for dwarfism. Secondary mobility or arthritic changes may need to be managed.

  • What to do if your dog is at risk


    • This condition itself is not typically regarded as painful, but ramps or stairs may be needed to assist affected dogs.
    • Arthritis may occur with this type of dwarfism. Speak with your veterinarian regarding signs of arthritis, pain management, and/or supplement administration, especially in advanced age.

  • Genetic Information

    This variant was first described in the Dogo Argentino.

    This variant is inherited in an autosomal recessive manner, meaning that a dog requires two copies of the variant to show signs of dwarfism.

    Gene names:

    PRKG2 Intron 13 ‐ chr32

    Inheritance type:


  • Breeds affected

    This health condition affects the following breeds

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