Mercier B, Catala M, Cornu P
Service de Neurologie, Hôpital de La Salpêtrière, Paris.
Rev Neurol (Paris). 1993;149(12):807-9.
Symptoms of right hemisphere dysfunction had developed over a 10-month period in a 69-year old woman. She had experienced transient episodes of facial asymmetry for 10 years. CT scan showed a hypodense hourglass tumor extending above and below the tentorium. MRI showed a low-intensity signal with T1-weighted sequences and a high-intensity signal with T2-weighted sequences. The tumour was removed. Pathological examination proved the tumor to be an epidermoid cyst. Such a tumor may have been responsible for transient deficits in the late stages of development.
一名69岁女性在10个月的时间里出现了右半球功能障碍的症状。她面部不对称的短暂发作已有10年。CT扫描显示一个低密度的沙漏形肿瘤，延伸至小脑幕上下。MRI显示在T1加权序列上呈低强度信号，在T2加权序列上呈高强度信号。肿瘤被切除。病理检查证实该肿瘤为表皮样囊肿。这样的肿瘤可能是发育后期短暂性缺陷的原因。
