COVID-19 is an emerging, rapidly evolving situation.

Get the latest public health information from CDC and research information from NIH.

U.S. flag

An official website of the United States government

Dot gov

The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Skip to Main Navigation
Skip to Page Content
Skip to Atlas Navigation

Lung - Ulceration - Gallery

Image of bronchial ulceration in the lung from a male Wistar Han rat in a acute study
Lung, Bronchus - Ulceration in a male Wistar Han rat from an acute study. A ribbon of necrotic tissue is adjacent to the bronchial surface, which has lost its epithelial cells.
Image of bronchial ulceration in the lung from a male Wistar Han rat in a acute study
Lung, Bronchus - Ulceration in a male Wistar Han rat from an acute study. Some early regenerative changes are visible in the adjacent epithelium (arrows).