Suppurative lesions in the lungs result from pyogenic organisms entering by way of the air passages and the blood stream, or by direct extension from contiguous structures. The term pulmonary suppuration has been used rather indiscriminately to include both abscess and bronchiectasis and while these lesions may be associated, an effort should be made to differentiate them clinically. The term pulmonary abscess as used here refers to the circumscribed suppuration which eventuates in cavity formation, softened tuberculous areas and bronchiectasis being excluded. Among 172 cases which constitute the basis of this report, no abscess due to the aspiration of a demonstrable foreign body or secondary to new growth has been included. These types of pulmonary abscess have certain distinctive pathologic and clinical features which call for separate consideration. Reference will be made to them when the diagnosis is considered.
Among the 172 cases in our group, 108 occurred in males
FLICK JB, CLERF LH, FUNK EH, FARRELL JT. PULMONARY ABSCESS: AN ANALYSIS OF ONE HUNDRED AND SEVENTY-TWO CASES. Arch Surg. 1929;19(6):1292–1312. doi:10.1001/archsurg.1929.01150060354021
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