Lung Abscess caused by Anaerobic Bacterial Infection

What is a Lung Abscess?

A lung abscess is a pus-filled cavity associated with an infection in the lungs. It is caused by anaerobic bacteria such as Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae and Peptostreptococcus micros. It typically develops after aspiration of saliva, food, vomit, and other material into the lungs.

What are the Symptoms of a Lung Abscess?

Common symptoms of a lung abscess include:

  • Chronic cough
  • Shortness of breath
  • Pleuritic chest pain
  • Fever
  • Coughing up bloody sputum
  • Unexplained fatigue
  • Loss of appetite

Diagnosis of a Lung Abscess

The diagnosis of a lung abscess is typically made by chest x-ray or a computed tomography scan (CT). Blood tests and sputum cultures may also be performed to identify the organism that caused the infection. Treatment typically involves the use of antibiotics and drainage of the abscess.

Complications of a Lung Abscess

If the abscess is large or left untreated, it can rupture, leading to further infection, collapse of the lung, and even death. In some cases, the infection can spread to other organs, such as the brain, causing a more serious complication.