Abstract
Background
Incidental internal carotid artery (ICA) calcifications are occasionally noted on CT images of the brain and temporal bone. In adults, incidental calcifications have been correlated with increased incidence of hypercholesterolemia, cardiac disease, diabetes and carotid stenosis.
Objective
To determine the incidence of incidental calcifications of the carotid siphon on temporal bone CT in children.
Materials and methods
We retrospectively reviewed 24 months of consecutive temporal bone CT examinations in children aged 18 years and younger. CT examinations on 663 patients were reviewed and the presence or absence of ICA calcifications was ranked as absent, questionable or definitive. In patients in whom definitive calcifications were identified, hospital charts were reviewed for evidence of diabetes mellitus, hypercholesterolemia, hypertriglyceridemia, hyperlipidemia and chronic renal disease as potential causes of early atherosclerosis.
Results
Of the 663 patients, 25% had definitive calcifications within the wall of the ICA: 6% of children younger than 2 years and 28% of children 12–19 years of age.
Conclusions
Incidentally noted ICA calcifications are a common finding on temporal bone CT in children, most likely a physiologic response to turbulent flow at natural bends in the artery rather than secondary to underlying disease predisposing to early atherosclerotic calcification.
Similar content being viewed by others
References
Cohen SN, Friedlander AH, Jolly DA, et al (2002) Carotid calcification on panoramic radiographs: an important marker for vascular risk. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 94:510–514
Ptak T, Hunter GH, Avakian R, et al (2003) Clinical significance of cavernous carotid calcifications encountered on head computed tomography scans performed on patients seen in the emergency department. J Comput Assist Tomogr 27:505–509
Callaway MP, Richards P, Goddard P, et al (1997) The incidence of coronary artery calcification on standard thoracic CT scans. Br J Radiol 70:572–574
Woodring JH, West JW (1989) Coronary artery calcification identified by CT in patients over forty years of age. Australas Radiol 33:79–83
Savy LE, Moseley IF (1996) Intracranial arterial calcification and ectasia in visual failure. Br J Radiol 69:394–401
Katada K, Kanno T, Sano H, et al (1983) Calcification of the vertebral artery. AJNR 4:450–453
Bergevin MA, Daugherty CC, Bove KE, et al (1991) The internal carotid artery siphon in children and adolescents. Hum Pathol 22:603–606
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Koch, B., Blackham, A. & Jones, B. Incidental internal carotid artery calcifications on temporal bone CT in children. Pediatr Radiol 37, 141–144 (2007). https://doi.org/10.1007/s00247-006-0355-3
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00247-006-0355-3