Fibrodysplasia Ossificans Progressiva, also known as myositis ossificans progressiva, is related to osseous heteroplasia, progressive and ankylosis. An important gene associated with Fibrodysplasia Ossificans Progressiva is ACVR1 (Activin A Receptor Type 1), and among its related pathways/superpathways are ERK Signaling and Signal Transduction. The drugs Pharmaceutical Solutions and Immunoglobulins have been mentioned in the context of this disorder. Affiliated tissues include bone and skeletal muscle, and related phenotypes are abnormal vertebral morphology and spinal rigidity