At an isolated weather station in the central United States, a technician emerges from a small brick shed grasping a balloon. It's not just any birthday party balloon, mind you, but a massive, white sphere more than 5 feet (1.5 meters) in diameter.
Most frequently, the lung abscess arises as a complication of aspiration pneumonia caused by mouth anaerobes. The patients who develop lung abscess are predisposed to aspiration and commonly have periodontal disease.
However, apart from Entamoeba histolytica, liver abscess may also be caused by other pathogens, including enteric gram-negative bacteria and pyogenic gram-positive cocci. Occasionally, salmonella, brucella, mycobacteria and even fungi have been known to produce abscesses in the liver.iliary disease is now the most common source of pyogenic abscess 4. Liver abscess can also arise from infection of the gall bladder, through the blood stream from infected foci anywhere in the body, and following direct trauma.