• Sixty-six patients were treated "conservatively" for unilateral retinoblastoma. Forty-eight of 57 (84%) were treated primarily with unilateral radiation, one patient was treated with a cobalt plaque, and eight patients were treated with either cryopexy or xenon arc photocoagulation. With a median follow-up of 73 months, there have been no deaths. Five of 39 eyes that were in groups I to III have been salvaged. Virtually all eyes in groups IV and V (12 of 14) came to enucleation. The age at diagnosis for patients with a positive family history was early (2.5 months), and the patients had a greater number of individual tumors in one eye (2.4), compared with those without a positive family history (27 months, 1.2 tumors per eye). When unilateral retinoblastoma is detected at an early age, the most common sign is strabismus, not leukokoria.
Abramson DH, Marks RF, Ellsworth RM, Tretter P, Kitchin FD. The Management of Unilateral Retinoblastoma Without Primary Enucleation. Arch Ophthalmol. 1982;100(8):1249–1252. doi:10.1001/archopht.1982.01030040227002
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