title: Calcification of the ligamentum arteriosum in children: a normal finding on CT.
abstract: Calcification of the ligamentum arteriosum is a rare finding on plain radiographs. We commonly have seen the calcification on unenhanced CT scans of the chest, a finding not previously reported. A retrospective review of unenhanced CT scans of the chest was undertaken to determine the frequency of the described finding. Seven (13%) of 53 patients had a well-demarcated focus of calcification in the region of the ligamentum arteriosum. None of these patients had evidence of a patent ductus arteriosum. Calcification within the ligamentum arteriosum was seen in 13% of routine CT examinations of the chest in children and should not be confused with a pathologic process producing mediastinal calcifications.
authors.affiliation: Department of Radiology, Rush-Presbyterian-St. Luke's Medical Center, Chicago, IL 60612.
authors.forename: M
authors.initials: M
authors.lastname: Bisceglia
authors.forename: J S
authors.initials: JS
authors.lastname: Donaldson
mesh_terms: D000293:Adolescent; D002114:Calcinosis / Q000000981:diagnostic imaging*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008022:Ligaments / Q000000981:diagnostic imaging*; D008297:Male; D012016:Reference Values; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed