Abstract
Acute or atypical interstitial pneumonia (AIP) is terminology used by veterinary pathologists to describe a characteristic pattern of damage in the lungs of cattle. At necropsy, the first indication of AIP-affected lungs is they fill the thorax and do not collapse like normal lungs when the chest cavity is opened. On further investigation, the AIP lungs are found to be semi-firm with a rubbery texture; not hard and consolidated as occurs in bacterial bronchopneumonia. Large air bubbles are found between portions of the lung (see Figure 1, “interlobular” or “bullous” emphysema) and the cut surface of the lung may appear wet or shiny due to edema. Affected lobules are dark red to purple and may be interspersed with normal looking lobules, creating a “patchwork” or “checkerboard” appearance.
Publication Date
7-2015
Publication Number
ID-231
Repository Citation
Arnold, Michelle and Lehmkuhler, Jeff, "Acute or Atypical Interstitial Pneumonia (AIP)" (2015). Agriculture and Natural Resources Publications. 111.
https://uknowledge.uky.edu/anr_reports/111
Notes
This is part of the Forage-Related Cattle Disorders series.