Subdural hematomas can also happen after an acceleration-deceleration injury like speeding on the road and then suddenly slamming on the brakes.

硬膜下血肿也常发生于加速-减速损伤中，比如在加速行驶后突然急刹时。

A subacute subdural hematoma causes symptoms between 3 and 14 days, and a chronic subdural hematoma causes symptoms after 15 days.

亚急性硬膜下血肿在3到14天内出现症状；慢性硬膜下出血在15天后出现症状。

So an acute subdural hematoma causes symptoms within 2 days.

急性硬膜下血肿通常在2天内出现症状。

Small subdural hematomas are drained by placing a small tube called a catheter through a drilled hole in the skull.

小型的硬膜下血肿可经由颅脑钻孔，通过导管引流治疗。

So on a CT scan, subdural hematomas follow the contour of the brain and form a crescent shape and cross suture lines.

所以在CT上，硬膜下血肿的轮廓和大脑轮廓一致，呈新月形，跨过颅缝。

A chronic subdural hematoma, on the other hand, shows up as a hypodense mass, which is less white than the surrounding brain tissue.

而慢性硬脑膜下血肿，则显示为低密度区域，意味着比正常脑组织亮度更低。

Large subdural hematomas require a craniotomy, which is when part of the skull bone is removed in order to remove the accumulated blood below.

大型的硬膜下血肿则需要开颅手术，即取下部分颅骨，来清除积聚的血液。

On a CT scan, an acute subdural hematoma shows up as a hyperdense mass, meaning that it looks more white than the surrounding healthy brain tissue.

在CT上，急性硬膜下血肿为高密度区域：也就是说那块区域比旁边的正常脑组织亮度更高。

A blow to the head? A subdural hematoma?

头部受到过袭击? 硬脑膜下血肿?

Subdural hematomas cross suture lines and follow the contour of the brain forming a crescent shape, unlike epidural hematomas which don't cross suture lines and push on the brain and form a bi-convex shape.

硬膜下血肿可跨过颅缝，与大脑轮廓一致，呈新月形；相形之下，硬膜外血肿不跨过颅缝，而且压迫大脑呈双凸镜形。

He has a subdural hematoma, which is bleeding in the brain.

他硬膜下血肿 导致脑部出血。

Subdural hematomas are common in head traumas like falling in a wet bathtub and whacking your head, or in Shaken Baby Syndrome, where a baby is violently shaken, making their head whip back and forth, which damages the bridging veins.

硬膜下血肿在头部外伤中很常见，比如在浴缸中摔倒撞到头，或是婴儿摇晃综合征：即当婴儿受到强力摇晃时，其大脑来回的摇晃，损伤了桥静脉。

A large subdural hematoma on one side of the skull can cause a midline shift, which is the displacement of the whole brain toward the opposite side of the skull.

大量的单侧硬膜下血肿会造成中线移位，即整个大脑都向另一侧偏移。

The official cause of death was ruled as a subdural hematoma, or a traumatic brain injury, but it was established that Nance was alone in his home.

官方的死因被裁定为硬膜下血肿或脑外伤，但可以确定南斯独自一人在家中。