title: What's your diagnosis? Fibrodysplasia (myositis) ossificans progressiva.
authors.affiliation: Infectious Diseases and Department of Pediatrics, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia.
authors.forename: D
authors.initials: D
authors.lastname: Al-Shahrani
authors.forename: S
authors.initials: S
authors.lastname: Al-Mayouf