What is a characteristic of gliomas?

Gliomas are a type of brain tumor that arise from glial cells, which are the supportive cells of the nervous system. One characteristic of gliomas is that they tend to be highly malignant and can grow rapidly. This aggressive nature is due to their ability to infiltrate surrounding brain tissue, making them difficult to completely remove through surgery. Their rapid growth can lead to significant neurological deficits and complications, contributing to a poorer prognosis compared to other types of brain tumors.

In contrast, other options do not accurately describe the nature of gliomas. For instance, while some brain tumors may be slow-growing and benign, gliomas are generally categorized by their malignant features. Concentration in areas of infection does not apply specifically to gliomas, as they are primarily classified by their cellular origin rather than due to infectious processes. Additionally, gliomas do not arise from nonneuronal tumors; instead, they originate specifically from glial cells. This understanding of the tumor's behavior and characteristics is essential for forming an effective treatment strategy and managing patient care.