D35.4: Benign neoplasm: Pineal gland

You have benign abnormal tissue in the pineal gland in the brain.

When there is abnormal growth of tissue in an organ, then this is also referred to as a tumor. The tissue in the body is made up of cells. A tumor disorder involves the cells multiplying more than normal. This results in abnormal or excess tissue forming. A tumor can be benign or malignant. The tumor you have is benign. Benign tumors do not destroy the healthy tissue and do not spread throughout the body.

The pineal gland is in the brain. The pineal gland secretes messenger substances that regulate things like the sleep-wake cycle of the body.

A tumor in the pineal gland can press on the brain and nerves. You may have various symptoms as a result. The person may no longer be able to move their eyes properly. The pupils in your eyes can also be deformed. The pupils may not react to light as normal. The tumor can cause the pressure in your head to increase. This can then result in too much fluid accumulating in the brain. You can then get headaches and severe nausea. You may also need to vomit or have blurred vision. You may also find it difficult to concentrate. You may no longer be able to control urination.

However, it is also possible that you will have no symptoms at all.