Variable Anatomy of the Middle Cerebral Artery from Its Origin to the Edge of the Sylvian Fissure: A Direct Fresh Brain Study

Figure 2

Termination patterns of the MCA. (a) The MT of the MCA terminating as a bifurcation (Bi). (b) The MT of the MCA terminating as a trifurcation (Tri). (c) Primary trunk (Pri) with severe atherosclerosis. (d) Early bifurcation resulting in a short MT just 6.5 mm in length. The ICA, anterior cerebral artery (ACA), posterior communicating artery (Pcom), early temporal branch (ET), olfactory tract (OT) (distorted in panel (c)), and optic chiasma () are indicated.

(a)

(b)

(c)

(d)