Lung - nontumor
Cystic disease / congenital anomalies
Bronchogenic cyst

Topic Completed: 1 August 2011

Minor changes: 27 May 2020

Revised: 28 January 2019, last major update August 2011

Copyright: (c) 2003-2017,, Inc.

PubMed search: bronchogenic cyst [title] lung

Elliot Weisenberg, M.D.
Page views in 2019: 1,859
Page views in 2020 to date: 664
Cite this page: Weisenberg E. Bronchogenic cyst. website. Accessed May 31st, 2020.
Definition / general
  • Arises from ectopic foregut; buds of developing embryonic lung become separated from the tracheobronchial tree before bronchi are formed, and may be lined by squamous, ciliated, or columnar epithelium
  • May be intrapulmonary or extrapulmonary and are almost always independent of bronchi
  • Relatively rare; most common site is posterior mediastinum at level of carina (eMedicine)
  • Present as space occupying lesion, may compromise airway
Clinical images

Images hosted on other servers:

round cyst behind
descending aorta
Microscopic (histologic) description
  • Lined by respiratory epithelium
Microscopic (histologic) images

Images hosted on other servers:

Lined by respiratory epithelium

Positive stains
  • Positive for CK7
Negative stains
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