Homogeneous consolidation that almost invariably abuts against a visceral pleural surface and almost always contains an air bronchogram.
Note that this infection most commonly occurs in alcoholics and other compromised hosts. Cavitation and pleural reaction are rare.
In children, may produce the so-called round or spherical pneumonia, in which a well-circumscribed spherical consolidation on both frontal and lateral views simulates a pulmonary or mediastinal mass (See the figure below)
