Clinical Perspective

The hilum overlay sign in a child

M J Van Wyk, N Mahomed
South African Journal of Radiology | Vol 14, No 4 | a460 | DOI: | © 2010 M J Van Wyk, N Mahomed | This work is licensed under CC Attribution 4.0
Submitted: 24 February 2010 | Published: 07 December 2010

About the author(s)

M J Van Wyk, University of Witwatersrand and Chris Hani Baragwanath Hospital
N Mahomed, Chris Hani Baragwanath Hospital

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A 9-month-old girl presented with a 1-month history of coughing. A chest X-ray (CXR) was performed, and the antero-posterior view demonstrated the hilum overlay sign. Furthermore, there was absence of the azygo-oesophageal line and bilateral paraspinal lines. The lateral CXR revealed a posterior mediastinal mass. Subsequently, a computed tomogram of the chest confirmed a posterior mediastinal mass, with calcifications and intraspinal extension consistent with neuroblastoma. Histological analysis confirmed this mass as a neuroblastoma.


Hilum overlay sign; Neuroblastoma


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