Linear IgA disease
Also known as: Linear IgA dermatosis · Linear IgA bullous dermatosis · Lineare IgA-Dermatose · Lineare IgA-Krankheit · Canine linear IgA disease
Overview
What it is
This is a rare autoimmune disease affecting the skin, where the dog's immune system mistakenly produces IgA antibodies that attack proteins in the basement membrane zone, which is the boundary layer between the outer and inner skin. This attack weakens the skin layers, leading to blister formation. Diagnosis is typically confirmed using a skin biopsy test called direct immunofluorescence (DIF) to detect these specific antibody deposits.
How it presents
Owners will typically notice itchy or painful blisters, redness, crusts, and open sores on their dog's face, ears, and paws. These symptoms usually first appear during young to middle adulthood.
Treatment
While the condition is incurable and requires lifelong immunosuppressive therapy and regular veterinary monitoring, it can be managed. Lifetime treatment and care costs typically range from 2,000 to 7,000 EUR.
How it's tested
Hautbiopsie mit direkter Immunfluoreszenz(DIF)
Primary testClinical examEine histopathologische Untersuchung einer Hautbiopsie mittels direkter Immunfluoreszenz (DIF) zum Nachweis von linearen IgA-Antikörperablagerungen entlang der Basalmembran.
Issuing body: vet
Result scheme: Clear/Carrier/Affected
Affected breeds
Treatment cost
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.
Frequently asked
What is Linear IgA disease?
This is a rare autoimmune disease affecting the skin, where the dog's immune system mistakenly produces IgA antibodies that attack proteins in the basement membrane zone, which is the boundary layer between the outer and inner skin. This attack weakens the skin layers, leading to blister formation. Diagnosis is typically confirmed using a skin biopsy test called direct immunofluorescence (DIF) to detect these specific antibody deposits.
How is Linear IgA disease tested?
Tests currently in our database: Hautbiopsie mit direkter Immunfluoreszenz.
Which breeds are most affected?
This condition isn't tied to a specific breed in our database.