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腔隙梗塞(Lacunar infarction)即腔隙性脑梗塞,又称腔隙卒中、小卒中或穿通支梗塞。腔隙是指深部小动脉梗塞后,由大吞噬细胞将梗塞处脑组织移走而遗留小腔或筛孔而言。腔隙(Lacuna)表示已愈合的缺血性梗塞,其形态不规則,直径一般2～4毫米,最大20毫米。多数学者认为好发部位依次为基底节、丘脑、桥脑基底部、部分白质。而大小脑皮层、视放射、脊髓几乎不发生,这种严格的选择性发病,原因不明。
Lacunar infarction (lacunar infarction) lacunar infarction, also known as lacunar stroke, stroke or through the branch infarction. Lack refers to the deep arterioles after infarction, the phagocytic cells will be removed by the infarct brain tissue left in terms of small cavities or sieve. Lacuna refers to a healed ischemic infarct, irregular in shape, usually 2-4 mm in diameter and up to 20 mm in diameter. Most scholars believe that the predilection sites followed by basal ganglia, thalamus, pons base, some white matter. The size of the cerebral cortex, depending on the radiation, the spinal cord almost does not occur, this strict selective disease, the reason is unknown.