Progressive Osseous Heteroplasia (POH)
It is possible that the main title of the report Progressive Osseous Heteroplasia (POH) is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
Progressive osseous heteroplasia (POH) is an extremely rare disorder characterized by abnormal development of bone in areas of the body where bone is not normally present (heterotopic ossification). The disorder first appears as areas of patchy bone formation (ossification) in the skin during infancy; heterotopic ossification progresses to involve superficial and deep connective tissues, areas of fat beneath the skin (subcutaneous fat), muscles, tendons, ligaments, and the sheets of fibrous tissue that envelop muscle (fascia). This abnormal formation of bone may restrict the movement of affected joints and/or hinder the growth of affected limbs. The course of the disease is unpredictable; some areas of the body may become severely affected while others may remain unaffected.
NIH/National Institute of Arthritis and Musculoskeletal and Skin Diseases
One AMS Circle
Bethesda, MD 20892-3675
Progressive Osseous Heteroplasia Association
5327 Westpointe Plaza Drive #113
Columbus, OH 43228
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126