RID35392 Naclerio V sign

synonym V sign of Naclerio

definition V-shaped radiolucency seen in the lower left mediastinum in frontal x-ray. One limb outlines the mediastinal border; the other divides the parietal pleura from left hemidiaphragm. Seen in pneumomediastinum, typically secondary to esophageal rupture.

comment http://radiology.rsna.org/cgi/content/full/245/1/296