Ependymomas, which are typically in the supratentorial or within the spinal cord in adults, are believed to arise from radial glial cell stem cells. They can occur throughout the neural axis, usually in close proximity to the ventricles or central canal. While the parietal lobe and temporal occipital region are common locations for supratentorial ependymomas, we present a rare case of an entirely intraparenchymal frontal lobe tumor, remote from the ventricular surface. Imaging revealed a cyst and solid cerebellar mass near the lateral ventricle. Single-voxel hydrogen proton magnetic resonance spectroscopy detected choline increasing and the N-Acetyl-L-aspartic acid decreasing. Histological features did not display the common diagnostic rosettes-morphous of clustered malignant cells.
[1]Jilin Univ, China Japan Union Hosp, Dept Neurosurg, 126 Xiantai St, Changchun 130031, Jilin, Peoples R China.
[2]Jilin Univ, China Japan Union Hosp, Dept Pathol, Changchun, Jilin, Peoples R China.
[3]Xi An Jiao Tong Univ, Affiliated Hosp 3, Shaanxi Prov Peoples Hosp, Radiotherapy Ctr, Xian, Shaanxi, Peoples R China.
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