Histoplasmosis is a fungal infection that can cause swelling, inflammation, and, sometimes, small semi-opaque or calcified nodules on the lungs. However, histoplasmosis does not always cause symptoms.

Cold air can irritate the airways that carry air into the lungs, potentially causing symptoms like coughing, chest tightness, and trouble breathing.

Smoking can cause lungs to look blackened, inflated, and inflamed, but some of the damage is reversible. Depending on the extent of the damage, it could take years for your lungs to regain a healthy, ...

While most people recover from COVID-19 within a week or two, up to one-third of survivors experience persistent or new symptoms weeks and months after initial infection. One form of "long COVID" is ...

Squamous cell lung cancer starts in the squamous cells: thin, flat cells that line the inside of the airways in your lungs. If you're diagnosed after the cancer has spread, it tends to be more ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...

Not so long ago, the textbook image of the lungs was that of a sterile environment. “When I was in medical school, around 2005, literally my pathology textbook said that the normal lung is free from ...

Lung cancer sometimes spreads to the airways that bring oxygen into your lungs, causing the airways to narrow or get blocked. When this happens, it's hard for your lungs to fully expand when you ...