Kurosaki Kunikazu, Hayashi Nakamasa, Hamada Hideo, Hori Emiko, Kurimoto Masanori, Endo Shunro
Department of Neurosurgery, Toyama Medical and Pharmaceutical University, 2630 Sugitani, Toyama 930-0194, Japan.
Neurol Med Chir (Tokyo). 2005 Apr;45(4):216-9. doi: 10.2176/nmc.45.216.
A 22-year-old woman presented with a rare case of multiple epidermoid cysts located in the pineal and extracranial regions. Magnetic resonance (MR) imaging showed a lesion in the pineal region as hypointense on the T(1)-weighted image and hyperintense on the T(2)-weighted image, without enhancement. Neuroendoscopic treatment was performed under a diagnosis of pineal cyst. However, the cyst wall was too thick to perforate, although third ventriculostomy was performed. Diffusion-weighted MR imaging demonstrated the lesions in the pineal and extracranial regions as marked hyperintensity. The diagnosis was epidermoid cyst. Subsequently, neuroendoscopic treatment of the pineal epidermoid cyst was performed. Careful preoperative diagnosis of epidermoid cysts based on diffusion-weighted MR imaging is required.
一名22岁女性,患有罕见的位于松果体区和颅外区域的多发性表皮样囊肿。磁共振成像显示松果体区病变在T1加权像上呈低信号,在T2加权像上呈高信号,无强化。在诊断为松果体囊肿的情况下进行了神经内镜治疗。然而,尽管进行了第三脑室造瘘术,但囊肿壁太厚无法穿孔。扩散加权磁共振成像显示松果体区和颅外区域的病变呈明显高信号。诊断为表皮样囊肿。随后,对松果体表皮样囊肿进行了神经内镜治疗。术前需要基于扩散加权磁共振成像对表皮样囊肿进行仔细诊断。