LUNG - Staphylococcal abscesses

These are portions of an infant lung. The pleural surface of the larger piece on the right-hand side of the pot shows an exudate; there is no exudate on the pleural surface of the outer piece of the lung. Each lung shows multiple cysts, up to 1 cm. in diameter. Those on the right-hand specimen appear to be thicker-walled than those on the left. Some of the cystic areas contain amorphous debris and some blood clot. These are the characteristic appearances of staphylococcal lung abscesses.