This is a normal coronaryartery. The lumen is large, without any narrowing by atheromatous plaque. The muscular arterial wall is of normal proportion.
图示：正常冠状动脉。腔较大，不伴有动脉粥样硬化斑块引起的管腔狭窄。动脉肌层的厚度适中。
2
These cross sections of the left anterior descending coronaryartery demonstrate more pronounced atherosclerosis with narrowing at the left, which is the proximal portion of this artery.