A Case of Fibrodysplasia Ossificans Progressiva in a 5-year-old Boy with all Musculoskeletal Features and Review of the Literature.

Introduction: Fibrodysplasia ossificans progressiva previously known as myositis ossificans progressiva is a rare connective tissue disorder with autosomal dominant genetic inheritance. Patients develop heterotrophic ossification starting with the first decade of life. Diagnosis is extremely difficult until ossifications are visible.