Micrograph of a<unk> . H&E stain. On the macroscopic scale,<unk> C tumors are grayish in color, resembling the gray matter that comes with areas of hemorrhage. The tumors are soft, ovid, lobulated to nodular masses that are generally well circumscribed. When dissecting the tumor, scientists experienced some grittiness, which they attribute to the presence of calcification. Tumor samples stained using H&E stain and examined under the microscope revealed that<unk> C is a well-differentiated tumor with benign histological features. The tumor is composed of “uniform, small-to-medium-sized cells with rounded nuclei, finely stippled chromatin and inconspicuous nucleoli, along with scant cytoplasm.”<unk> C are characterized by perivascular pseudorosettes, circular/flower-like arrangements of cells with a small blood vessel at the centre, and polygonal small cells with a clear perinuclear halo, sometimes called the ‘fried egg’ appearance, and is clear or slightly eosinophilic. The main histomorphologic differential diagnosis is oligodendroglioma. While the tumor cells are dense in some areas, areas with anuclear, less dense tumor parts were dispersed throughout. The anuclear areas may have a fine fibrillary matrix, like that of neuropil regions. Long, thin-walled, capillary-sized vessels represent the vascularity of<unk> C. These vessels are arranged in a linear branching pattern, with an endocrine appearance. Thin-walled dilated vascular channels, as well as foci of calcification, were readily identified in many cases. Image:<unk>  - very high mag. Very high mag. Image:<unk>  - 2 - high mag. High mag. Image:<unk>  - 2 - very high mag. Very high mag.
Central neurocytoma
Neurothekeoma
Subependymoma
Pilocytic astrocytoma
Ganglioglioma
Glial tumor
Mantleoma
Ependymoma