Table of Contents
- 1 What body system does fibrodysplasia ossificans progressiva affect?
- 2 How does Stone Man Syndrome affect the body?
- 3 How does fibrodysplasia ossificans progressiva affect the lungs?
- 4 How is fibrodysplasia ossificans progressiva diagnosis?
- 5 Is FOP a metaplasia?
- 6 What are the early symptoms of fibrodysplasia ossificans progressiva?
- 7 What causes fibrodysplasia ossificans progressiva?
What body system does fibrodysplasia ossificans progressiva affect?
Fibrodysplasia ossificans progressiva (FOP) is a very rare genetic connective tissue disorder characterized by the abnormal development of bone in areas of the body where bone is not normally present (heterotopic ossification), such as the ligaments, tendons, and skeletal muscles.
How does Stone Man Syndrome affect the body?
It results in ectopic osseous growths in muscles and connective tissues with episodic flare-ups and restriction of body movements at the sites of involvement. The clinical features of this disorder include progressive ectopic ossification and malformation of great toes.
How does FOP affect cells?
FOP is a human genetic disease that alters the regulation of progenitor cell differentiation as a consequence of mutations that activate the BMP type I receptor ACVR1 and downstream signaling.
How does fibrodysplasia ossificans progressiva affect the lungs?
Over time, people with FOP may become malnourished because of the inability to eat. They may also develop breathing difficulties as a result of extra bone formation around the rib cage that restricts expansion of the lungs.
How is fibrodysplasia ossificans progressiva diagnosis?
The diagnosis of FOP is made by clinical evaluation. Confirmatory genetic testing is available. Differential diagnosis includes progressive osseous heteroplasia, osteosarcoma, lymphedema, soft tissue sarcoma, desmoid tumors, aggressive juvenile fibromatosis, and non-hereditary (acquired) heterotopic ossification.
What is the disease that your body turns to stone?
Living with scleroderma: The disease that turns you into stone.
Is FOP a metaplasia?
Since tissue trauma in patients with FOP induces bone metaplasia, tissue biopsies are very rare and are obtained just prior to the establishment of a diagnosis of FOP.
What are the early symptoms of fibrodysplasia ossificans progressiva?
Symptoms of FOP include:
- malformations of the big toe.
- spontaneous flare-ups of inflammation or soft tissue swelling.
- increased flare-ups after injury, viral illness, or immunizations.
- difficulty moving.
- frequent injury due to falling.
Is ALS considered a rare disease?
ALS is a rare disorder that develops in 1.5 to 3 per 100,000 people every year in North American and European populations. Approximately 30,000 people are affected in the United States, with an estimated 5,000 new cases diagnosed each year.
What causes fibrodysplasia ossificans progressiva?
Mutations in the ACVR1 gene cause fibrodysplasia ossificans progressiva. This gene provides instructions for making a member of a protein family called bone morphogenetic protein (BMP) type I receptors. The ACVR1 protein is found in many tissues of the body including skeletal muscle and cartilage.