title: Solitary cartilaginous exostosis of the ilium presenting as an abdominal mass.
mesh_terms: D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D002675:Child, Preschool; D002812:Chondroma / Q000000981:diagnostic imaging*; D006801:Humans; D007085:Ilium / Q000000981:diagnostic imaging*; D008297:Male; D014567:Urography