title: Contrast-enhanced MRI of an early preosseous lesion of fibrodysplasia ossificans progressiva in a 21-month-old boy.
mesh_terms: D003287:Contrast Media; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D009221:Myositis Ossificans / Q000473:pathology*
chemical_list: D003287:Contrast Media