A sputum culture is a sample of the gooey substance that often comes up from your chest when you have an infection in your lungs or airways. It is mostly made up of white blood cells that fight ...

Tuberculosis, also known as TB, is an illness that affects the lungs and is caused by a type of bacteria called Mycobacterium tuberculosis complex. TB can spread when a person with the illness coughs, ...

Lung cancer is the leading cause of cancer mortality rate worldwide, mainly because of the presence of metastatic disease at the time of diagnosis. Early detection of lung cancer improves prognosis, ...