Brain Tumor (cont.)
In this Article
What are the tumor grades and types?
When most normal cells grow old or get damaged, they die, and new cells take their place. Sometimes, this process goes wrong. New cells form when the body doesn't need them, and old or damaged cells don't die as they should. The buildup of extra cells often forms a mass of tissue called a growth or tumor.
Primary brain tumors can be benign or malignant:
Benign brain tumors do not contain cancer cells:
Malignant brain tumors (also called brain cancer) contain cancer cells:
Doctors group brain tumors by grade. The grade of a tumor refers to the way the cells look under a microscope:
Cells from low-grade tumors (grades I and II) look more normal and generally grow more slowly than cells from high-grade tumors (grades III and IV).
Over time, a low-grade tumor may become a high-grade tumor. However, the change to a high-grade tumor happens more often among adults than children.
Viewers share their comments
Brain Tumor - Symptoms Question: The symptoms of brain tumor can vary greatly from patient to patient. What were your symptoms at the onset of your disease?
Brain Tumor - Types Question: Please describe the type of brain tumor you have.
Brain Tumor - Treatment Question: What kinds of treatment did you undergo for your brain tumor?
Brain Tumor - Surgery Question: Please describe your experience with surgery for a brain tumor.
- Allergic Skin Disorders
- Bacterial Skin Diseases
- Bites and Infestations
- Diseases of Pigment
- Fungal Skin Diseases
- Medical Anatomy and Illustrations
- Noncancerous, Precancerous & Cancerous Tumors
- Oral Health Conditions
- Papules, Scales, Plaques and Eruptions
- Scalp, Hair and Nails
- Sexually Transmitted Diseases (STDs)
- Vascular, Lymphatic and Systemic Conditions
- Viral Skin Diseases
- Additional Skin Conditions