脑腔隙性梗塞(lacuae)是脑深部穿通动脉发生梗塞,受阻塞动脉供血区脑组织早期是缺血和水肿,其后坏死、液化,最终是坏死组织被巨噬细胞吞噬移走,形成小腔。病灶直径1～15mm不等。发病当天(梗塞超早期)CT一般无变化;次日,几乎患部都可见到低密度影。好发于内囊、丘脑、基底节和脑干,与高血压病有关,起病缓慢,予后较 The lacuae of the cerebral lacuna is an infarction in the deep penetrating artery of the brain. The ischemic and edematous brain tissue of the obstructed arterial blood supply area is necrotic and liquefied, and finally the necrotic tissue is swallowed by macrophages to form small Cavity. Lesions diameter 1 ~ 15mm range. On the day of onset (early infarction) CT generally did not change; the next day, almost all the affected area can be seen low density. Occur in the internal capsule, thalamus, basal ganglia and brainstem, and hypertension, slow onset, after the more