Fibrodysplasia ossificans progressiva (FOP) is an ultra-rare genetic disorder that turns soft tissue to bone. A recently completed multi-year study will finally provide doctors the information ...

Symptoms: FOP causes the body's muscle and connective tissue to be gradually replaced with bone tissue. This essentially forms a second skeleton that impedes the person's movement. One of the ...

Based on these symptoms, early misdiagnoses of FOP include cancer and disorders of connective tissue or bone. Soft tissue swellings in a person with FOP are often mistaken for symptoms of other ...