Adrenal tumors can grow slowly or quickly depending on whether they are cancerous or noncancerous. Cancerous types tend to grow faster than noncancerous types. Approximately 75% of all adrenal tumors ...

Plexiform neurofibromas are tumors that grow along nerves. That’s how they get their name: "neuro" means nerves, and "fibroma" is a type of tumor. These growths have nerve tissue and many different ...

Christina Curtis, associate professor of medicine and genetics at Stanford University’s School of Medicine. Credit: courtesy Christina Curtis Despite tremendous scientific advances, there’s still so ...

Symptoms of liver cancer don’t usually appear early on. You can’t see your liver from the outside, so it’s not like skin cancer, where there’s a lesion on your skin. A lot of cancers cause pain or a ...

A recent study shows that bacteria living inside colorectal tumors form distinct ecosystems that are closely linked to how the disease progresses and patient outcomes. These "tissue-resident" microbes ...

About 90 percent of cancer deaths are caused by tumor metastasis – or when cancer cells break free and spread to other parts of the body. Yet, we don’t have an exact understanding of the mechanism ...

Pineal region tumors develop in or around the pineal gland, a small, pea-sized organ near the brain’s center. They can be benign or malignant, and they are rare. The pineal gland plays a crucial role ...

Pituitary adenomas are the most common pituitary tumors. They’re usually noncancerous and grow slowly. Some rarer tumors, such as pituitary carcinoma, can spread quickly. Your pituitary gland is a ...