This term describes the physical pressure exerted by a growing tumor on nearby tissues, organs, and structures. It can lead to a variety of symptoms depending on the location and size of the tumor, including:
* Headaches: Tumors in the brain can compress surrounding tissues and cause headaches.
* Nausea and vomiting: Tumors in the brain can also affect the vomiting center, leading to nausea and vomiting.
* Seizures: Tumors in the brain can disrupt normal electrical activity, leading to seizures.
* Vision problems: Tumors in the brain can compress the optic nerve, leading to vision problems.
* Pain: Tumors can also cause pain by compressing nerves or surrounding tissues.
Mass effect is an important consideration in the diagnosis and treatment of cancer. It can help doctors understand the extent of a tumor and determine the best course of treatment.