A tumor is an abnormal growth of cells. Normally, cells divide
in a regulated manner. If cells keep dividing when new cells are
not needed, a mass of tissue forms; this is called a tumor.
There are two types of tumors: benign and malignant. Benign
tumors stay in one place, grow to a certain size, and then
generally stop. Malignant tumors do not stop growing, and pieces
of them travel to other parts of the body, where they also
continue to grow. Malignant tumors, called cancers, can be fatal
if not treated. The ability to cure a cancer depends upon
patient and tumor-related features. Patient-related features
include: - Performance status - Overall health - Willingness to
undergo treatment Tumor-related features include: - Type of
cancer - Site of the origin of the cancer - How advanced the
disease is when it is detected - Tumor’s response to therapy
Copyright © Nucleus Medical Media, Inc. Types of brain tumors
include: These are tumors which start in the brain or its
coverings (meninges). Metastatic: These beg