kivijalkoja
Kivijalkoja, also known as "stone legs" or "stone-legged disease," is a rare, progressive, and often fatal disorder characterized by the gradual replacement of bone tissue with fibrous tissue, leading to severe deformities and loss of mobility. The condition primarily affects the lower extremities, causing the legs to become thin, weak, and misshapen, often resembling the appearance of stone or marble. The exact cause of kivijalkoja is unknown, but it is believed to be an autoimmune disorder, where the body's immune system mistakenly attacks and destroys healthy bone tissue.
The disease typically begins in childhood or adolescence, with symptoms such as pain, swelling, and stiffness
Kivijalkoja is a rare condition, with an estimated prevalence of fewer than 1 in 1 million people