Lung - nontumor
Cystic disease / congenital anomalies
Bronchogenic cyst

Author: Elliot Weisenberg, M.D. (see Authors page)

Revised: 21 February 2017, last major update August 2011

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

PubMed search: bronchogenic cyst [title] lung

Cite this page: Bronchogenic cyst. website. Accessed April 23rd, 2017.
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
Micro Description
  • Lined by respiratory epithelium
Micro Images

Images hosted on other servers:

Lined by respiratory epithelium

Positive Stains
  • Positive for CK7
Negative Stains