Chida Kohei, Yukawa Hirotsugu, Mase Tomohiko, Endo Hideo, Ogasawara Kuniaki
Department of Neurosurgery, Iwate Prefectural Chubu Hospital, Kitakami, Iwate, Japan.
Neurol Med Chir (Tokyo). 2011;51(12):854-6. doi: 10.2176/nmc.51.854.
A 4-month-old girl fell off a table onto the floor. Computed tomography performed 4 hours after the trauma showed a left parietal epidural hematoma (EDH) with an omega-shaped fracture line in the left parietal region. The EDH was enlarged after another 4 hours. However, the EDH showed drainage into the subgaleal space through the skull fracture 2 days after the trauma and was almost completely discharged into the subgaleal space by 5 days after trauma. Both the EDH and the subgaleal hematoma had resolved completely by 12 days after the trauma. No symptoms or signs were observed during the course. This case suggests that EDH can drain slowly and spontaneously into the subgaleal space through a skull fracture in an infant.
一名4个月大的女孩从桌子上掉到了地上。创伤后4小时进行的计算机断层扫描显示左顶叶硬膜外血肿（EDH），左顶叶区域有一条Ω形骨折线。再过4小时后，硬膜外血肿增大。然而，创伤后2天，硬膜外血肿通过颅骨骨折排入帽状腱膜下间隙，到创伤后5天时几乎完全排入帽状腱膜下间隙。创伤后12天时，硬膜外血肿和帽状腱膜下血肿均已完全消退。病程中未观察到任何症状或体征。该病例表明，婴儿的硬膜外血肿可通过颅骨骨折缓慢自发地排入帽状腱膜下间隙。
