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Cancer Health Center

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Retinoblastoma Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Treatment Options for Unilateral and Bilateral Retinoblastoma

Standard Treatment Options for Unilateral Retinoblastoma

Standard treatment options for unilateral retinoblastoma include the following:

Recommended Related to Cancer

General Information About Thyroid Cancer

Incidence and Mortality Estimated new cases and deaths from thyroid cancer in the United States in 2014:[1] New cases: 62,980. Deaths: 1,890. Carcinoma of the thyroid gland is an uncommon cancer but is the most common malignancy of the endocrine system.[2] Differentiated tumors (papillary or follicular) are highly treatable and usually curable. Poorly differentiated tumors (medullary or anaplastic) are much less common, are aggressive, metastasize early, and have a much poorer prognosis...

Read the General Information About Thyroid Cancer article > >

  1. Enucleation for large intraocular tumors, followed by risk-adapted chemotherapy when the eye cannot be saved.
  2. Conservative ocular salvage approaches when the eye and vision can be saved.
    • Chemoreduction with either of the following:
    • Local treatments including cryotherapy, thermotherapy, and plaque radiation therapy.
    • External-beam radiation therapy (EBRT).

Enucleation followed by chemotherapy

Because unilateral disease is usually massive and often there is no expectation that useful vision can be preserved, up-front surgery (enucleation) is commonly performed. Careful examination of the enucleated specimen by an experienced pathologist is necessary to determine whether high-risk features for metastatic disease are present. These features include the following:[1,2,3,4,5]

  • Anterior chamber seeding.
  • Massive choroidal involvement.
  • Tumor beyond the lamina cribrosa.
  • Scleral and extrascleral extension.

Pre-enucleation magnetic resonance imaging has low sensitivity and specificity for the detection of high-risk pathology.[6]

Systemic adjuvant therapy with vincristine, doxorubicin, and cyclophosphamide or with vincristine, carboplatin, and etoposide has been used to prevent the development of metastatic disease in patients with certain high-risk features assessed by pathologic review after enucleation.[3,7,8]; [9][Level of evidence: 2A]

Conservative ocular salvage approaches

Conservative ocular salvage approaches, such as chemotherapy and local-control treatments, may be offered in an attempt to save the eye and preserve vision.[10] Ocular salvage rates correlate with intraocular stage. In selected children with unilateral disease, the Reese-Ellsworth (R-E) Group was correlated with ocular outcomes. While the possibility of saving the eye without the use of EBRT was greater than 80% for children with R-E Group II or III disease, the ocular outcomes for children with R-E Group V eyes were poor, with less than 40% ocular salvage rates, even after the use of EBRT.[11]

Caution must be exerted with extended systemic chemotherapy administration and delayed enucleation when tumor control does not appear to be possible, particularly for Group E eyes. Pre-enucleation chemotherapy for eyes with advanced intraocular disease may result in downstaging and underestimate the pathological evidence of extraretinal and extraocular disease, thus increasing the risk of dissemination.[12]

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