Preferred Label : 3 sign;
RADLEX synonyms : three sign; reverse 3 sign;
Definition : Anterior cerebral artery crosses the midline resembles a 3 or reverse 3, with the
middle point directed medially on a frontal arteriogram. Suggests midfrontal mass;
artery is pushed across the midline, but the callosomarginal artery tethers the anterior
cerebral artery.;
Source : Eisenberg, Ronald L. Atlas of Signs in Radiology.;
Origin ID : RID34990;
Associated condition(s)
Anterior cerebral artery crosses the midline resembles a 3 or reverse 3, with the
middle point directed medially on a frontal arteriogram. Suggests midfrontal mass;
artery is pushed across the midline, but the callosomarginal artery tethers the anterior
cerebral artery.
