この論文をさがす
説明
We report a rare case of tanycytic ependymoma arising from the cerebral hemisphere. A 59-year-old man was admitted to our hospital because of the incidental detection by MRI of a tumor lesion in the right temporooccipital paratrigonal region. The mass showed low-to iso-intensity on T1-weighted images and high intensity on T2/proton-weighted images. Partial resection was performed using a transsulcal approach to avoid compromising the visual field. Most of the tumor cells showed elongated spindle shapes arranged in dense fascicles. A few true ependymal rosettes and perivascular pseudorosettes were visible. The tumor cells were positive for GFAP, S-100, and vimentin, but negative for synaptophysin, EMA, and keratin. The MIB-1 labeling index was approximately 1%. Ultrastructurally, the tumor cells had ependymal cell features, such as microvilli and cilia. From these findings, a pathological diagnosis of tanycytic ependymoma was made.
収録刊行物
-
- Brain Tumor Pathology
-
Brain Tumor Pathology 23 91-95, 2006-10-25
Springer Science and Business Media LLC
- Tweet
キーワード
- Central Nervous System Vascular Malformations
- Male
- Tomography, Emission-Computed, Single-Photon
- Brain Neoplasms
- Middle Aged
- Immunohistochemistry
- Magnetic Resonance Imaging
- Cerebral Angiography
- Ependymoma
- Biomarkers, Tumor
- Image Processing, Computer-Assisted
- Humans
- Thallium
- Visual Fields
- Cell Proliferation