自发性眶内出血的CT及MRI表现

目的：分析总结自发性眶内出血的CT及MRI表现。方法：回顾性分析13例经手术病理证实或临床影像随访诊断为自发性眶内出血病例的CT及MRI表现。结果：13例均为单侧，右眼5例，左眼8例。4例经手术证实，9通过临床随访诊断为自发性眶内出血。出血形成的血肿形态上呈前宽后窄的锥形，边界光滑清晰，均位于球后，与外直肌或下直肌关系密切，向后可达眶尖部。CT图像上出血表现为较高密度，MR信号特点符合出血信号，增强CT及MR均无强化。9例通过CT复查的病例中，4例出血完全吸收，4例遗留外直肌稍增厚，1例眶尖部内下方软组织影稍增多。结论：自发性眶内出血CT和MRI表现具有一定的特征性，大多数能够自行吸收，CT及MR可对其诊断、随访提供可靠依据。

CT and MRI Findings of Spontaneous Intra-Orbital Haemorrhage

Objective:To analyze the CT and MRI findings of spontaneous intra-orbital haemorrhage.Methods:The CT and MRI findings of 13 patients with the diagnosis of spontaneous intra-orbital haemorrhage were retrospectively analyzed,all of which were proved by surgery,pathology or clinical follow-up.Results:All of the 13 patients had unilateral intra-orbital haemorrhage,with right eye(n=5) and left eye(n=8).4 cases were proved by surgery and 9 cases were diagnosed by clinical follow-up.The hematoma were conical in sh...