Skull Base Tumors (Craniopharyngioma)

What is craniopharyngioma?

Craniopharyngioma is a benign (non-cancerous) tumor that develops at the base of the skull, near the pituitary gland. Having a craniopharyngioma doesn't cause cancer, but if it gets big enough, it can press against different nerves and parts of the brain and cause health problems.

Symptoms of craniopharyngioma

Craniopharyngioma is most common in children, but it can also happen in adults. Kids and adults may notice the same symptoms, including:

• Headaches
• Nausea and vomiting
• Vision changes
• Problems with balance

Once the tumor reaches a certain size, it can push on nearby structures in the brain and cause symptoms like:

• Loss of vision, especially peripheral vision
• Increased appetite, overeating or weight gain
• Increased thirst and frequent urination, sometimes called diabetes insipidus
• Hypothyroidism
• Adrenal failure

Kids who have craniopharyngioma may have stunted growth and may be late starting puberty. Adults with craniopharyngioma may have a decreased sex drive, and men may become impotent. Women may stop getting a monthly period.

Because the pituitary gland plays a big role in controlling your hormones, many of the symptoms of craniopharyngioma can look like other hormonal problems. Talk to your doctor if you're having symptoms.