USEFUL EFFECT

\jˈuːsfə͡l ɪfˈɛkt], \jˈuːsfə‍l ɪfˈɛkt], \j_ˈuː_s_f_əl ɪ_f_ˈɛ_k_t]\
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1899 - The american dictionary of the english language.
By Daniel Lyons

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Sporadic Retinoblastoma

  • A malignant arising nuclear layer retina that is most primary eye in children. The tumor tends to occur early childhood or infancy present at birth. majority are sporadic, but condition may be transmitted as autosomal dominant trait. Histologic features include dense cellularity, small round polygonal cells, areas of calcification and necrosis. An abnormal pupil reflex (leukokoria); NYSTAGMUS; STRABISMUS; visual loss represent common clinical characteristics this condition. (From DeVita et al., Cancer: Principles Practice Oncology, 5th ed, p2104)
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