Cystic lung lesions (paediatric)
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Cystic lesions in paediatric patients are usually congenital lesions and, as such, can be seen prenatally and following delivery.
Causes
Congenital
These congenital lesions are predominantly covered by the overarching diagnosis of bronchopulmonary foregut malformation. This is a heterogeneous group of conditions that result from embryonic foregut maldevelopment and comprises:
- bronchogenic cysts
- bronchopulmonary sequestration
- congenital pulmonary airway malformation (CPAM)
- congenital lobar emphysema
- bronchial atresia
- congenital pulmonary cysts
In addition, conditions outwith this spectrum also cause cystic lung lesions:
It is important to remember that there are other causes of cystic lesions on a chest x-ray, including:
Acquired
Of course, even though the majority of cases are congenital, there are plenty of examples of cystic lung lesions that are acquired:
- pneumatocele: post-pneumonic (Staph) or following trauma
- infective cavitation: much less common than in adults
- abscess with air-fluid interface: if the child is supine, the gas at the top of the cavity will have the appearance of a cyst on the chest x-ray
- hydatid disease2,3
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- +<a title="Pulmonary hydatid disease" href="/articles/pulmonary-hydatid-infection">hydatid disease</a> <sup>2,3</sup>
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References changed:
- 2. Solak H, Yeniterzi M, Yüksek T, et al. The hydatid cyst of the lung in children and results of surgical treatment. (1990) The Thoracic and cardiovascular surgeon. 38 (1): 45-7. <a href="https://doi.org/10.1055/s-2007-1013991">doi:10.1055/s-2007-1013991</a> - <a href="https://www.ncbi.nlm.nih.gov/pubmed/2309229">Pubmed</a> <span class="ref_v4"></span>
- 3. Wolfgang Dähnert. Radiology Review Manual. (2011) <a href="https://books.google.co.uk/books?vid=ISBN9781609139438">ISBN: 9781609139438</a><span class="ref_v4"></span>
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