During the past few years there have come under our observation fifteen cases of abscess of the lungs in young individuals. They are included in a series of 100 cases occurring at all ages which were previously recorded by one of us (H. W.). However, because of their special interest to pediatricians they are, perhaps, worthy of separate consideration.
Three of these cases followed aspiration of a foreign body; five cases were subsequent to operation for tonsillectomy and seven cases may be attributed to pneumonia or other inflammatory lung conditions.
The cases following tonsillectomy easily lend themselves to a study of the manner in which these abscesses may be produced. It is probable that during general anesthesia the purulent plugs which are expressed from the tonsillar crypts by the grasping forceps are aspirated into one of the smaller bronchi. The obstructed bronchus is further sealed by aspirated blood,