脉络膜前动脉未梢动脉瘤罕见。作者报告一例更为罕见的原发性且术后无并发症的该种病例,并对其有关问题进行了探讨。 患者,女性,34岁,因突发头痛、呕吐就诊。诊断为蛛网膜下腔出血(SAH)而入院,血常规、血生化及心电图、胸片检查正常。入院查体:意识模糊、躁动。未见神经系统障碍。CT扫描见广泛的脑室内血肿,基底池和大脑外侧裂池充满薄层的SAH;颈动脉造影正常。因此采取保守疗法,行侧脑室引流 Anterior chorioretinal artery aneurysms rare. The authors report a rare case of this primary case with no postoperative complications and explored its related issues. Patient, female, 34 years old, vomit due to sudden headache. Diagnosis of subarachnoid hemorrhage (SAH) and admission, blood, blood biochemistry and ECG, chest X-ray examination was normal. Admission examination: confusion, restlessness. No nervous system disorders. CT scan to see a wide range of intraventricular hematoma, basal cistern and lateral fissure pool is filled with thin slices of SAH; normal carotid angiography. Therefore, conservative treatment, lateral ventricle drainage