Update: We are now collecting Disclosures from all users who edit content. You will be prompted to update these when you next edit content or you can complete your disclosures at any time in your user profile. This has been reflected in an updated terms-of-use.

Pores of Kohn

Last revised by Dr Patrick J Rock on 16 Mar 2021

Pores of Kohn are small communications between adjacent pulmonary alveoli and provide a collateral pathway for aeration. They are poorly formed in children and along with poorly formed canals of Lambert, are thought to be responsible for the frequency of round pneumonia in that age group.

They are typically less than 10 micrometers in diameter 1.

History and etymology

Named after Hans Kohn: German pathologist (1866-1935) 2.

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Bronchial anatomy (illustration)
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.