A tumor is an abnormal mass of tissue that forms when cells grow and divide more than they should, or do not die when they should. Tumors may be benign ...

All cancers are tumors, but not all tumors are cancers. Tumors can either be benign (non-cancerous) or malignant (cancerous). The first type, that is benign tumours do not spread to other parts of the ...

The most common type of brain tumor, meningioma, grows from the membranes surrounding the brain and spinal cord. Usually they are benign, which means they are not cancerous. However, a subset of ...

Pancreatic cancer is often fatal, but a molecular test that can accurately distinguish benign cysts from those that could become cancerous may be a key to saving lives. Researchers tested the ...

MRIs are an effective diagnostic tool for pituitary tumors. Although MRI scans can miss very small tumors, newer machines are better equipped to detect them. Most pituitary tumors are noncancerous, or ...

You may be reading this because you or someone you care about has nasal cavity or sinus cancer. Learning more can help you get ready to talk with your healthcare provider and understand the next steps ...