American Journal of Roentgenology, Vol 129, Issue 3, 453-455
Copyright © 1977 by American Roentgen Ray Society
The target sign: a new radiologic sign of septic pulmonary emboli
MN Zelefsky
and
LG Lutzker
A new radiographic sign consisting of a pulmonary density suspended in a thin-walled cystic area is described in five patients with hematogenously disseminated infection. A pathogenetic mechanism is suggested to account for this "target sign." The relationship of these findings to pulmonary pneumatoceles is also discussed.