眼眶神经纤维瘤在计算机断层扫描上表现为亨氏单位值为阴性。
Orbital neurofibroma presenting with a negative Hounsfield unit on computerized tomography.
作者信息
Yan Jianhua, Li Yongping, Wu Zhongyao
机构信息
Zhongshan Ophthalmic Center, the Section of Ocular Oncology & Orbital Disease, Sun Yat-sen University, Guangzhou, People's Republic of China.
出版信息
Orbit. 2006 Sep;25(3):239-41. doi: 10.1080/01676830600575493.
PURPOSE
To report a case of diffuse orbital neurofibroma which displayed an unusual computed tomography (CT) feature.
METHODS
Results of ocular examination, orbital CT examination and pathological findings in a patient with a space-occupying orbital lesion are presented.
RESULTS
Orbital CT evaluation of a male patient, aged one and a half years old, revealed a right orbital lesion with a strongly negative value in Hounsfield units. The preoperative diagnosis was a dermoid cyst. An anterior orbitotomy was performed, and the surgical specimen demonstrated a typical plexiform neurofibroma with routine hematoxylin and eosin staining and immunohistochemical studies.
CONCLUSIONS
Plexiform orbital neurofibromas may demonstrate a negative Hounsfield value on CT examination.
目的
报告1例表现出不寻常计算机断层扫描（CT）特征的弥漫性眼眶神经纤维瘤病例。
方法
介绍1例眼眶占位性病变患者的眼部检查、眼眶CT检查结果及病理发现。
结果
对一名1岁半男性患者进行眼眶CT评估，发现右侧眼眶病变在亨氏单位中呈强负值。术前诊断为皮样囊肿。进行了前路眼眶切开术，手术标本经苏木精-伊红常规染色和免疫组织化学研究显示为典型的丛状神经纤维瘤。
结论
丛状眼眶神经纤维瘤在CT检查中可能表现为亨氏值为负。
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