2013, Number 6
Anatomic norm of the superior cerebellar artery
Language: Spanish
References: 24
Page: 657-671
PDF size: 295.89 Kb.
ABSTRACT
Background: the diagnosis and treatment of vascular encephalic diseases that affect superior cerebellar arteries are really difficult because of the great variability of these vessels.Objective: to characterize anatomically the common pattern and the variants of the superior cerebellar artery in an adult man.
Method: a descriptive study was conducted in 50 human brains obtained from the Department of Legal Medicine of the Amalia Simoni Clinical Surgical Teaching Hospital of Camagüey. Each brain and its arterial system were dissected macromicroscopically.
Results: the superior cerebellar artery originated in the basilar artery as a common pattern; as a variant, it originated from the posterior cerebral artery. It was observed double in nine pieces to the right and in eight to the left; it fallowed a standard trajectory. It was bifurcate of short prebifurcation segment and with diffuse spread from which the perforans and precerebellar collateral branches came out and the cortical branches as terminal. Some variants presented anatomic relation to the trigeminus in their trajectory, 21 were right and 15 were left.
Conclusions: as a common pattern, the superior cerebellar artery has its origin in the basilar artery and a standard trajectory. It is bifurcate of short prebifurcation segment and diffuse spread. From it, perforans, precerebellar, and cortical branches come out. Variants include origin in the posterior cerebral artery, relation to the trigeminus and long prebifurcation segment.
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