Fig. 22a–d.

Different patterns of disease caused by the same organism in severe acute respiratory syndrome (SARS). Images from a patient with proven SARS. (From the Princess of Wales Hospital, The Chinese University of Hong Kong) demonstrate different patterns of disease including a,b ground-glass densities, c focal acute air-space disease with halo phenomenon, and d bilateral areas of consolidation. The SARS has been shown to cause several different radiographic patterns at chest radiography and CT