Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2023 Sep 4;21:226. doi: 10.1186/s12964-023-01223-z

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.

PMC Copyright notice

Fig. 1 — Pictorial representation for Reese Ellsworth’s Classification of Retinoblastoma. A graphical abstract of the Reese Ellsworth’s classification system prepared using arbitrarily chosen symbols to represent their corresponding groups within the classification system and to understand different demarcations of the eye. The 1a (yellow cloud shape) aims to represent a tumour behind the equator, solitary and less than 4-disc diameters in size; 1b (multiple yellow cloud shapes) aims to represent multiple tumours behind the equator of the retina with the largest tumour not exceeding 4-disc diameters.; 2a (purple diagonal shape) aims to represent a 4-10DD tumour behind the retina; 2b (Multiple purple diagonal shapes) represents multiple tumours between 4-10DD; 3a (Green triangle shape) aims to represent a tumour anterior to the equator of the retina; 3b (Green triangle shape in a different location) aims to represent a > 10DD tumour behind the equator; 4a (multiple shapes of varied colours) aims to represent multiple tumours with some of them larger than ten-disc diameters in size; 4b (yellow slip diagonal shape) aims to represent a tumour that is crossing the ora serrata; 5a (Large, undefined blue shape in the background) aims to represent a large tumour that covers more than half of the retina; 5b (X marked at the border of the figure and in multiple areas marked across the eye figure) aims to represent vitreous seeding of the eye