脳内に液体がたまり、頭部の拡大や圧力の増加を引き起こす可能性のある状態

a condition in which fluid accumulates in the brain, potentially causing increased pressure and enlargement of the head

an abnormal condition in which cerebrospinal fluid collects in the ventricles of the brain; in infants it can cause abnormally rapid growth of the head and bulging fontanelles and a small face; in adults the symptoms are primarily neurological

脳の中の脳室に脳脊髄液がたまる異常な状態。乳児では頭の急速な成長と膨らんだ小泉門、小さな顔を引き起こすことがある。成人では主に神経学的な症状が現れる。