Suara R O, Trouth A J, Collins M
Department of Pediatrics and Child Health, Howard University Hospital Washington, DC, USA.
J Natl Med Assoc. 2001 Feb;93(2):70-3.
Subarachnoid space enlargement is a benign clinical entity characterized by rapid head enlargement in an infant with normal neurodevelopment. We report on two infants who had rapid increases in head circumference, family histories of macrocephaly, and normal neurodevelopment. Radiologic investigations in both infants showed subarachnoid space fluid collection but normal ventricular size. They both had a benign clinical course with resolution of the subarachnoid space fluid collection by the second year of life. The head circumference, however, remained at or above the 95th percentile. There is a need for pediatricians to be aware of this clinical entity and its benign nature.
蛛网膜下腔增宽是一种良性临床病症，其特征为神经发育正常的婴儿头部迅速增大。我们报告了两名婴儿，他们头围迅速增加，有巨头症家族史，且神经发育正常。两名婴儿的影像学检查均显示蛛网膜下腔有液体积聚，但脑室大小正常。他们的临床病程均为良性，到1岁时蛛网膜下腔液体积聚均已消退。然而，头围仍处于或高于第95百分位。儿科医生有必要了解这一临床病症及其良性本质。
