眼眶骨膜下间隙血肿的CT、MRI表现

CT and MRI Findings of Orbital Subperiosteal Hematoma

目的分析眼眶骨膜下间隙血肿的CT、MRI表现并探讨其临床价值。资料与方法36例(36眼)眼眶外伤性骨膜下血肿患者中,同时行眼眶CT、MRI检查2例。仅行眼眶CT检查30例,横断位、冠状位检查25例,横断位1例,冠状位检查4例。仅行MRI检查4例。结果眼眶CT显示骨膜下间隙血肿32例,其中上壁18例,外上壁7例,外壁5例,下壁2例。病变广基附于眶壁,内缘清楚,密度均匀,一般不跨越骨缝。眼眶MRI显示上壁骨膜下间隙血肿6例,信号取决于出血时间。结论眼眶骨膜下间隙血肿多发生于眼眶上壁。CT、MRI有助于对该病的诊断及鉴别诊断。

Objective To analyze CT and MRI findings of patients with orbital subperiosteal hematoma and to evaluate their clinic values. Materials and Methods CT and/or MRI findings of 36 patients （36 eyes） with orbital subperiosteal hematoma were analyzed retrospectively. Both CT and MRI were performed in 2 cases, Axial and coronal CT were performed in 25cases, axial CT scanning in 1 case, and coronal CT in 4 cases respectively. MR was only performed in 4 cases. Results CT showed orbital subperiosteal hematoma in 32 cases, the superior orbital wall in 18 cases, the lateral and superior wall simultaneously in 7 cases, the lateral wall in 5 cases, and the inferior wall in 2 cases. CT revealed a well-demarcated mass, broad-based, beneath the orbital wall, and did not across the suhures in most cases. MRI revealed orbital subperiosteal hematoma beneath the superior orbital wall in 6 cases, and MRI findings were depended on the period of the hematoma. Conclusion Orbital subperiosteal hematoma is predominant located at the superior orbital wall. CT and/or MRI can contribute to diagnosis and differential diagnosis of this disease.