Which of the following is true regarding glioma?

Glioma is recognized as a type of malignant brain tumor, making it the correct choice. These tumors arise from glial cells, which are supportive cells in the nervous system, and they can exhibit aggressive growth patterns, leading to significant health challenges.

Given the nature of gliomas, they can vary widely in terms of their behavior and grade, with higher-grade gliomas being more aggressive and associated with a poorer prognosis. The most common types of gliomas include glioblastomas and astrocytomas, which are particularly known for their malignancy.

The other options do not accurately describe the characteristics of glioma. For instance, gliomas are not benign; benign brain tumors tend to grow slowly and do not invade surrounding tissues like malignant tumors do. Additionally, gliomas originate from glial cells, not connective tissue, which is a completely different type of cell in the body. Finally, gliomas are associated with the brain, not the pancreas, which is unrelated to the pathology of gliomas.