A splenic abscess (or abscess of the spleen) occurs when bacteria or fungi from elsewhere in the body travel via the blood stream into the spleen tissue where they multiply.
There is a fever and left upper abdominal pain.
This is often associated with left chest pain as there can be an associated pleuritic condition in the lining of the left lower lung cavity, called “pleurisy”, from irritation of the left diaphragm. On deep palpation the left upper abdomen is tender and an enlarged spleen can be detected.
The physician will likely order some X-rays, which confirm a splenic enlargement. A CT scan will show the details of the splenic abscess and the displacement of the neighboring organs (colon, stomach, kidney, and elevated left-sided diaphragm). If a CT scan is not available, an ultrasound study would show a larger abscess of more than 2.5 cm (= 1 inch) in diameter. Blood cultures often would isolate the offending pathogen. Most commonly the lab result is a staphylococcus or streptococcus. But other bacteria such as anaerobes or Salmonella can also be found or the yeast bug Candida albicans, which often is found in AIDS or other immunocompromised patients. Other blood tests also show signs of an infection because of a leukocytosis.
Like with any other abscess, the pus has to be drained and the infection needs to be treated with appropriate antibiotics. Ignoring a spleen abscess will only lead to deterioration of the patient and eventual death of septicemia.
The surgeon will likely attempt a percutaneous (needle through the skin into the spleen) insertion of a catheter into the abscess cavity. The catheter is then hooked up to a vacuum for a period of time until the drain no longer produces pus and blood tests show that the infection has subsided. The original infection that lead to the spleen abscess on the first place also needs to be found and treated. Occasionally there is a subacute bacterial endocarditis where bacteria grow on degenerated heart valve leaves and are shed from time to time to distant organs such as the spleen. An artificial heart valve such as a porcine valve may have to be considered to prevent reoccurrence of other abscesses throughout the body.
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