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. 2021 May;68(5):e28964.
doi: 10.1002/pbc.28964. Epub 2021 Feb 23.

Response criteria for intraocular retinoblastoma: RB-RECIST

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Response criteria for intraocular retinoblastoma: RB-RECIST

Jesse L Berry et al. Pediatr Blood Cancer. 2021 May.

Abstract

Standardized guidelines for assessing tumor response to therapy are essential for designing and conducting clinical trials. The Response Evaluation Criteria In Solid Tumors (RECIST) provide radiological standards for assessment of solid tumors. However, no such guidelines exist for the evaluation of intraocular cancer, and ocular oncology clinical trials have largely relied on indirect measures of therapeutic response-such as progression-free survival-to evaluate the efficacy of treatment agents. Herein, we propose specific criteria for evaluating treatment response of retinoblastoma, the most common pediatric intraocular cancer, and emphasize a multimodal imaging approach for comprehensive assessment of retinoblastoma tumors in clinical trials.

Keywords: clinical trials; imaging; ocular oncology; response criteria; retinoblastoma; ultrasonography.

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Conflict of interest statement

CONFLICT OF INTEREST

Jesse L. Berry has filed a provisional patent application entitled, Aqueous Humor Cell Free DNA for Diagnostic and Prognostic Evaluation of Ophthalmic Disease. The authors declare that there is no conflict of interest.

Figures

FIGURE 1
FIGURE 1
(A) Large retinal detachment with subretinal seeding associated with Group D retinoblastoma that is preventing fundoscopic evaluation of the posterior segment. (B) Fundus photograph of the same eye after systemic chemotherapy demonstrating a classic cream-colored, dome-shaped mass with associated vascularity and calcifications with scarring from consolidative therapy around the tumor margin. This highlights the significant changes the eye undergoes as it responds to therapy
FIGURE 2
FIGURE 2
B-scan ultrasound image demonstrating a dome-shaped retinal lesion with highly reflective deposits of intralesional calcium, consistent with retinoblastoma. Yellow and green lines represent measurements of tumor height and base, respectively

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