from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A hereditary malignant tumor of the retina, transmitted as a dominant trait and occurring chiefly among infants.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A malignant tumour of the retina; a hereditary condition found mostly in children.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. malignant ocular tumor of retinal cells; usually occurs before the third year of life; composed of primitive small round retinal cells
The average age of children with retinoblastoma is 18 months — and boys and girls are affected equally.
A major goal of treatment in children with retinoblastoma is preserving vision.
The diagnosis of retinoblastoma is made by examining the eyes.
One of only a few doctors in the nation using this approach, J. William Harbour, MD, is treating a rare childhood cancer, called retinoblastoma, which is characterized by tumors in the eye's retina.
Long-term retinoblastoma survivors are at a greater risk of dying from subsequent cancers and this elevated risk extends beyond 40 years, according to the results of a study published in the
In 1872, Hilário de Gouvêa, a Brazilian ophthalmologist practicing in Rio, treated a young boy with a rare cancer of the eye called a retinoblastoma by removing the eye surgically.
In early March, he became one of about 300 children diagnosed annually in the United States with a malignancy called retinoblastoma, or RB.
Previous research had shown that a tumor suppressor called retinoblastoma, or Rb, plays an important role in preventing many types of specialized mammalian cells, including those found in muscle, from dividing willy-nilly.
Most kids with the form of cancer called retinoblastoma get chemotherapy, followed by laser and freezing treatments to eliminate the last remnants of tumors.
The cause of primary brain tumors is unknown, although some tumors such as retinoblastoma tend to be hereditary.
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