What is the treatment of Intraocular Melanoma?
Five types of standard treatment are used:
Surgery is the most common treatment for intraocular melanoma. The following types of surgery may be used:
- Local tumor resection - Surgery to remove the tumor and a small amount of healthy tissue around it.
- Enucleation - Surgery to remove the eye and part of the optic nerve. This is done if the tumor is large and vision cannot be saved. The patient may be fitted for an artificial eye after enucleation.
- Exenteration - Surgery to remove the eye and eyelid, and muscles, nerves, and fat in the eye socket. The patient may be fitted for an artificial eye or facial prosthesis after exenteration.
Watchful waiting is closely monitoring a patient’s condition without giving any treatment until symptoms appear or change. A series of pictures is taken over time to keep track of changes in the size of the tumor and how fast it is growing.
Radiation therapy is a cancer treatment that uses high-energy x-rays or other types of radiation to kill cancer cells or keep them from growing. There are two types of radiation therapy. External radiation therapy uses a machine outside the body to send radiation toward the cancer. Internal radiation therapy uses a radioactive substance sealed in needles, seeds, wires, or catheters that are placed directly into or near the cancer. The way the radiation therapy is given depends on the type and stage of the cancer being treated.
Localized plaque radiation therapy is a type of internal radiation therapy that may be used for tumors of the eye. Radioactive seeds are attached to a disk, called a plaque, and placed directly on the wall of the eye where the tumor is located. The side with the seeds faces the eyeball and delivers radiation to the eye. The plaque, which is often made of gold, helps protect nearby tissues from radiation damage.
Charged-particle radiation therapy is a type of external radiation therapy. A special radiation therapy machine aims tiny, invisible particles, called protons or helium ions, at the cancer cells to kill them with little damage to nearby normal tissues. Charged-particle radiation therapy uses a different type of radiation than the x-ray type of radiation therapy.
Gamma Knife radiosurgery may be used for some melanomas. This non- surgical treatment aims tightly focused gamma rays directly at the tumor so there is little damage to healthy tissue. Gamma Knife is a type of stereotactic radiosurgery.
Photocoagulation is a procedure that uses laser light to destroy blood vessels that supply nutrients to the tumor, causing the tumor cells to die. Photocoagulation may be used to treat small tumors. This is also called light coagulation.
Thermotherapy is the use of heat to destroy cancer cells. Thermotherapy may be given using:
- A laser beam aimed through the dilated pupil or onto the outside of the eyeball
- Infrared radiation (light that cannot be seen but can be felt a...
Source: National Institute of Health Jan 09, 2013
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