About The Medical Condition Retinoblastomas
Find the definition of the medical term Retinoblastomas. Retinoblastomas defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Retinoblastomas
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What's The Definition Of The Medical Condition Retinoblastomas?
A malignant tumor arising from the nuclear layer of the retina that is the most common primary tumor of the eye in children. The tumor tends to occur in early childhood or infancy and may be present at birth. The majority are sporadic, but the condition may be transmitted as an autosomal dominant trait. Histologic features include dense cellularity, small round polygonal cells, and areas of calcification and necrosis. An abnormal pupil reflex (leukokoria); NYSTAGMUS; STRABISMUS; and visual loss represent common clinical characteristics of this condition. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2104)
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