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目的探讨颅内脂肪瘤与脊髓脂肪瘤的临床特点,影像学改变及诊断治疗方法。方法回顾分析了我院4例颅内脂肪瘤和4例脊髓脂肪瘤的临床资料。结果颅内脂肪瘤以胼胝体多见,临床多无症状,1例外侧裂脂肪瘤表现为癫痫发作。脊髓脂肪瘤以脊髓压迫症为主要表现,多伴有脊柱裂和其它脊柱先天异常。CT、MRI为确诊本病的主要方法,病灶在CT成像表现为低密度(CT值:—44～—72 Hu),MRI表现为T_1WI高信号和T_2WI中、高信号。结论颅内脂肪瘤好发于颅内中线结构及附近区域。脊髓脂肪瘤可发生于椎管的颈、胸、腰各段,以截瘫和根性刺激症状为主要临床表现,CT和MRI能显示病灶的脂肪密度的特征性表现,为诊断脂肪瘤的首选方法。
Objective To investigate the clinical features, imaging changes and diagnosis and treatment of intracranial lipoma and spinal cord lipoma. Methods The clinical data of 4 cases of intracranial lipoma and 4 cases of spinal cord lipoma in our hospital were retrospectively analyzed. Results Intracranial lipoma more common in the corpus callosum, clinically asymptomatic, 1 case of lateral lipoma showed seizures. Spinal cord lipoma with spinal cord compression as the main performance, often accompanied by spina bifida and other spine congenital anomalies. CT and MRI are the main methods for the diagnosis of this disease. The lesion showed low density (CT value: -44 ~ -72 Hu) in CT imaging, MRI showed high signal of T_1WI and high signal of T_2WI. Conclusion Intracranial lipoma occurs in the intracranial midline structure and in the vicinity. Spinal myeloma can occur in the spinal canal of the neck, chest, waist segments, with paraplegia and root irritation as the main clinical manifestations, CT and MRI can show the characteristics of the lesions of the fat density, the preferred method of diagnosis of lipoma.