Retinoblastoma
Definition
Retinoblastoma is a cancer affecting one or both eyes. It occurs mainly in children under the age of four. Its name is derived from the area of the eye that is affected, the retina. The retina is the part of the eye that captures the images of the outside world and transfers these images to the brain. If the eye is thought of as a camera, the retina can be thought of as the film in the camera.
Description
Retinoblastoma is the most common primary eye tumor of infancy and childhood, accounting for about one percent of all pediatric tumors. In about 75% of cases, retinoblastoma only affects one eye; when this occurs, it is referred to as unilateral retinoblastoma. In 25% of cases, it affects both eyes, and is...
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