Lupus

Lupus in Cats: An Overview
Lupus is a general term for a rare autoimmune disease in cats characterized by the formation of antibodies against the cat's own tissues.

Lupus erythematosus
Autoimmune disease affecting many body systems including joints, kidneys, muscles, nervous system
Skin lesions may include thickening or ulcers of the foot pads, scaling, and recurring bacterial infections with pustules ...

Systemic lupus erythematosus: a noninfectious disease in which nuclear material from various cells becoming antigenic; autoantibodies (antinuclear antibodies) are formed to attack the body’s own joints ...

See also: Behavior, Veterinarian, FIV, Felv, Virus