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目的分析症状性枕叶癫痫的病变类型,总结各种病变的影像学表现特征。方法回顾分析37例均经临床、病理或典型影像学表现证实的症状性枕叶癫痫患者的临床和CT、MRI、MRS和SPECT检查资料。结果37例患者枕叶病变分别为枕叶脑皮质发育不良4例、灰质异位4例、脑裂畸形3例、脑软化灶及瘢痕10例,枕叶钙化3例,动静脉畸形3例,海绵状血管瘤1例、星形细胞瘤2例、脑膜瘤1例、炎性肉芽肿2例、脑脓肿1例,线粒体脑肌病2例、Sturge-Weber综合征1例。结论症状性枕叶癫痫病变种类复杂多样,影像检查对致痫灶的定位定性诊断具有重要价值。
Objective To analyze the types of lesions in symptomatic occipital lobe epilepsy and summarize the imaging features of various lesions. Methods The clinical and CT, MRI, MRS and SPECT findings of 37 patients with symptomatic occipital lobe epilepsy confirmed by clinical, pathological or typical imaging findings were retrospectively analyzed. Results The occipital lobe lesions in 37 patients were as follows: 4 cases of cortical dysplasia of occipital lobe, 4 cases of ectopic gray matter, 3 cases of schizencephaly, 10 cases of cerebral softening and scars, 3 cases of occipital lobe calcification, 3 cases of arteriovenous malformations, 1 cavernous hemangioma, 2 astrocytoma, 1 meningioma, 2 inflammatory granuloma, 1 brain abscess, 2 mitochondrial encephalomyopathy, and 1 Sturge-Weber syndrome. Conclusions The types of symptomatic occipital epilepsy are complex and diverse, and the imaging examination is of great value in the qualitative diagnosis of the epileptic foci.