Treatment planning by a multidisciplinary team of cancer specialists, including a pediatric oncologist, ophthalmologist, and radiation oncologist, who have experience treating ocular tumors of childhood is required to optimize treatment planning.
Cancer prevention is action taken to lower the chance of getting cancer. By preventing cancer, the number of new cases of cancer in a group or population is lowered. Hopefully, this will lower the number of deaths caused by cancer.
To prevent new cancers from starting, scientists look at risk factors and protective factors. Anything that increases your chance of developing cancer is called a cancer risk factor; anything that decreases your chance of developing cancer is called a cancer protective...
Decrease risk of late sequelae from treatment, particularly subsequent neoplasms.
The type of treatment required depends on both the extent of the disease within the eye and whether the disease has spread beyond the eye, either to the brain or to the rest of the body. Eyes with glaucoma and those in which glaucoma resulted in buphthalmia are significantly associated with high-risk pathology risk factors and the occurrence of microscopically residual tumor. Enucleation is reserved for patients with advanced unilateral intraocular disease with no hope for useful vision in the affected eye. Subsequent risk of extraocular recurrence may be increased in the presence of high-risk histopathologic features such as massive choroid invasion, scleral invasion, and optic nerve invasion.[4,5]; [Level of evidence: 3iiDi] Clinical features predictive of these histological findings include eyes with glaucoma, especially those that have become buphthalmic. Routine bone marrow biopsy and lumbar puncture are not indicated, except when there is a high level of suspicion that the tumor has spread beyond the globe.[7,8] Examples include patients with an abnormal complete blood count or those whose tumors show massive choroidal involvement and which extend beyond the lamina cribrosa on pathologic examination of the enucleated specimen.
It is not uncommon for patients with retinoblastoma to have extensive disease within one eye at diagnosis, with either massive tumors involving more than one-half of the retina, multiple tumors diffusely involving the retina, or obvious seeding of the vitreous. For those with bilateral disease, systemic therapy may be used to treat the more severe eye.[9,10] There are data suggesting that the use of systemic chemotherapy may decrease the risk of development of trilateral retinoblastoma.
In patients with cavitary retinoblastoma, minimal visual response is seen after intravenous chemotherapy and/or intra-arterial chemotherapy. Despite the blunted clinical response, cavitary retinoblastoma has a favorable long-term outcome with stable tumor regression and globe salvage. Aggressive or prolonged chemotherapy or adjunctive therapies are generally not necessary. In a retrospective series of 26 cavitary retinoblastomas that were treated with intravenous chemoreduction and/or intra-arterial chemotherapy, the mean reduction in tumor base was 22% and mean reduction in tumor thickness was 29%. Despite minimal reduction, tumor recurrence was noted in only one eye, globe salvage was achieved in 22 eyes, and there were no cases of metastasis or death during 49 months (range, 6–189 months) of follow-up.
Chintagumpala M, Chevez-Barrios P, Paysse EA, et al.: Retinoblastoma: review of current management. Oncologist 12 (10): 1237-46, 2007.
Kopelman JE, McLean IW, Rosenberg SH: Multivariate analysis of risk factors for metastasis in retinoblastoma treated by enucleation. Ophthalmology 94 (4): 371-7, 1987.
Chantada GL, Gonzalez A, Fandino A, et al.: Some clinical findings at presentation can predict high-risk pathology features in unilateral retinoblastoma. J Pediatr Hematol Oncol 31 (5): 325-9, 2009.
Cuenca A, Giron F, Castro D, et al.: Microscopic scleral invasion in retinoblastoma: clinicopathological features and outcome. Arch Ophthalmol 127 (8): 1006-10, 2009.
Gupta R, Vemuganti GK, Reddy VA, et al.: Histopathologic risk factors in retinoblastoma in India. Arch Pathol Lab Med 133 (8): 1210-4, 2009.
Chantada GL, Dunkel IJ, Antoneli CB, et al.: Risk factors for extraocular relapse following enucleation after failure of chemoreduction in retinoblastoma. Pediatr Blood Cancer 49 (3): 256-60, 2007.
Moscinski LC, Pendergrass TW, Weiss A, et al.: Recommendations for the use of routine bone marrow aspiration and lumbar punctures in the follow-up of patients with retinoblastoma. J Pediatr Hematol Oncol 18 (2): 130-4, 1996.
Pratt CB, Meyer D, Chenaille P, et al.: The use of bone marrow aspirations and lumbar punctures at the time of diagnosis of retinoblastoma. J Clin Oncol 7 (1): 140-3, 1989.
Abramson DH, Beaverson K, Sangani P, et al.: Screening for retinoblastoma: presenting signs as prognosticators of patient and ocular survival. Pediatrics 112 (6 Pt 1): 1248-55, 2003.
Shields CL, Mashayekhi A, Demirci H, et al.: Practical approach to management of retinoblastoma. Arch Ophthalmol 122 (5): 729-35, 2004.
Shields CL, Meadows AT, Shields JA, et al.: Chemoreduction for retinoblastoma may prevent intracranial neuroblastic malignancy (trilateral retinoblastoma). Arch Ophthalmol 119 (9): 1269-72, 2001.
Rojanaporn D, Kaliki S, Bianciotto CG, et al.: Intravenous chemoreduction or intra-arterial chemotherapy for cavitary retinoblastoma: long-term results. Arch Ophthalmol 130 (5): 585-90, 2012.
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September 04, 2014
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