Lung Abscess : Symptoms, Causes, Diagnosis, Treatment A lung abscess is a pus-filled cavity surrounded by inflamed tissue in your lung . It is typically caused by breathing bacteria that normally live in your mouth or throat into your lungs, resulting in an infection. Lung Abscess Symptoms Symptoms of a lung abscess typically appear gradually over several weeks. They may include the following: Pain in the chest, especially when breathing in Wheezing Cough Fatigue Fever Loss of appetite Night ... Lung abscess is a pus-filled cavity in the lung tissue caused by microbial infection, often due to aspiration or septic emboli. Learn about the signs, complications, organisms, imaging studies, and management options for this condition. A lung abscess is a pus-filled cavity in the lung that is caused by an infection. Learn what causes it, how to spot symptoms, and how doctors treat it. A lung abscess is a cavity filled with pus in the lung , usually caused by a bacterial infection. Learn about the risk factors, diagnosis, treatment, complications, and outlook of this serious condition.