Preferred Label : tree-in-bud sign;
RADLEX synonyms : tree-in-bud opacity; tree-in-bud opacities;
Definition : Small, peripheral spots of soft-tissue attenuation branch from linear opacities on
lung CT scans, resembling a budding tree. Indicates pathological dilation, thickening,
and impaction of small airways.;
Source : Radiology 2002; 222:771-772. Fleischner Society;
Origin ID : RID35654;
Associated condition(s)
Small, peripheral spots of soft-tissue attenuation branch from linear opacities on
lung CT scans, resembling a budding tree. Indicates pathological dilation, thickening,
and impaction of small airways.
