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Lung Parenchyma

  • Alan Daneman

Abstract

In our experience in Toronto, the lungs and pleura of children who have had no previous thoractomy, chemotherapy, or thoracic radiation appear clear on CT. In the hilar regions the large arteries and veins are seen branching together with major bronchi as they enter the lung. The vessels normally appear unexpectedly prominent on transverse scans, and it may be extremely difficult, particularly in younger children, to differentiate these structures from enlarged hilar lymph nodes, even with intravenous contrast enhancement. The pulmonary vessels are usually the only normal structures that can be seen silhouetted against the low attenuation of the lung parenchyma. They branch several times and become progressively smaller as they course toward the periphery of the lung. It is impossible to differentiate veins and arteries in the peripheral lung fields. The vessels terminate before reaching the pleura. Occasionally, small normal subpleural lymph nodes may be seen and may mimic metastases (see Fig. 5.7).

Keywords

Osteogenic Sarcoma Lung Parenchyma Pulmonary Nodule Lung Nodule Lung Field 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Daneman A, de Silva M (1978) Cyst formation and cavitation in pulmonary metastases from Wilms tumor. Pediatr Radiol 7: 4–6PubMedCrossRefGoogle Scholar
  2. 2.
    Kirks DR, Korobkin M (1980) Computed tomography for chest examinations. Pediatr Ann 9: 192–199PubMedGoogle Scholar
  3. 3.
    Kirks DR, Korobkin M (1981) Computed tomography of the chest wall, pleura and pulmonary parenchyma in infants and children. Radiol Clin N Am 19: 421–429PubMedGoogle Scholar
  4. 4.
    Kuhns LR, Borlaza G (1980) The “twinkling star” sign. Radiology 135: 763–764PubMedGoogle Scholar
  5. 5.
    Sagel SS (1983) Lung, pleura, pericardium and chest wall. In: Lee JKT, Sagel SS, Stanley RJ (eds) Computed body tomography. Raven, New York, pp 55–98Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • Alan Daneman
    • 1
    • 2
  1. 1.University of TorontoCanada
  2. 2.Division of Ultrasound and Body CT Department of RadiologyThe Hospital for Sick ChildrenTorontoCanada

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