Nakazawa T, Abe T, Sato Y, Yuda F, Omura M, Tamai M
Department of Ophthalmology, Yamagata City Hospital, Japan.
Acta Ophthalmol Scand. 2000 Aug;78(4):470-3. doi: 10.1034/j.1600-0420.2000.078004470.x.
A non-pigmented adenoma of the ciliary epithelium is rare. No good documentation has been reported in which magnetic resonance imaging (MRI), histological examination, and immunohistological evaluation have all been conducted. We showed how this tumor differed from ciliary body melanoma.
We evaluated the ciliary body tumor by MRI, histological examination, and immunohistochemical examination. The data was compared with previously reported cases.
The tumor was classified as an adenoma of the non-pigmented ciliary epithelium with extracellular pools of hyaluronidase-sensitive mucopolysaccharide. The MRI appearance of the vitreous in our patient showed hyperintensity on T1, isointensity on T2 and marked enhancement with gadolinium. None of 3 other reported patients exhibited the same signals.
MRI appearance is most variable in adenomas and no microscopical diagnosis can be based on that. Our patient showed isointensity on T2 with marked enhancement by gadolinium when compared to malignant melanoma.
睫状体上皮无色素腺瘤较为罕见。目前尚无同时进行磁共振成像（MRI）、组织学检查及免疫组织学评估的详尽报道。我们展示了该肿瘤与睫状体黑色素瘤的差异。
我们通过MRI、组织学检查及免疫组化检查对睫状体肿瘤进行评估。并将数据与先前报道的病例进行比较。
该肿瘤被分类为伴有对透明质酸酶敏感的粘多糖细胞外池的无色素睫状体上皮腺瘤。我们患者玻璃体的MRI表现为T1加权像上呈高信号，T2加权像上等信号，钆增强后显著强化。其他3例报道患者均未表现出相同信号。
腺瘤的MRI表现差异极大，无法基于此进行微观诊断。与恶性黑色素瘤相比，我们的患者T2加权像上等信号，钆增强后显著强化。
