Related Experiment Video

Updated: Jul 7, 2026

Reconstruct Human Retinoblastoma In Vitro
06:52

Reconstruct Human Retinoblastoma In Vitro

Published on: October 11, 2022

[Choristoma of visual organ in children]

Anna Niwald1, Beata Orawiec, Mirosława Grałek

  • 1Kliniki Okulistyki Dzieciecej Katedry Pediatrii Zabiegowej Uniwersytetu Medycznego w todzi Z SP ZOZ Uniwersyteckiego Szpitala Klinicznego nr 4 Uniwersytetu Medycznego w Łodzi.

Klinika Oczna
|February 12, 2008
PubMed

Insights

This study details the clinical and histopathological features of choristoma tumors in children, finding surgical treatment to be effective for both therapeutic and cosmetic outcomes in these ocular growths.

Area of Science:

  • Ophthalmology
  • Pediatric Oncology
  • Surgical Pathology

Context:

  • Choristomas are congenital tumors composed of tissue elements normally found in other locations.
  • Ocular choristomas in children present unique diagnostic and management challenges.
  • Understanding the diverse clinical presentations and histopathological subtypes is crucial for effective treatment.

Purpose:

  • To characterize the clinical and histopathological features of ocular choristomas in pediatric patients.
  • To evaluate the outcomes of surgical interventions for choristoma tumors affecting the eye and surrounding structures.
  • To correlate histopathological findings with clinical presentation and surgical results.

Summary:

  • The study analyzed 23 children with ocular or periorbital choristomas, with tumors located intraocularly (43.5%) or periorbitally (56.5%).
  • Histopathological examination revealed dermoids (73.9%) and dermolipomas (26.1%) as the primary types.
  • Surgical excision achieved satisfactory therapeutic and cosmetic results for all treated choristomas, with complete removal in most cases.

Impact:

  • Provides a comprehensive overview of pediatric ocular choristomas, aiding in diagnosis and treatment planning.
  • Highlights the efficacy of surgical management for improving visual function and aesthetic outcomes.
  • Contributes to the understanding of the epidemiology and pathology of these rare pediatric tumors.
Abstract

More Related Videos

Whole-mount Retinal Organoid Visualization with Cellular Resolution09:20

Whole-mount Retinal Organoid Visualization with Cellular Resolution

Published on: June 20, 2025

Visualization of Tangential Cell Migration in the Developing Chick Optic Tectum08:28

Visualization of Tangential Cell Migration in the Developing Chick Optic Tectum

Published on: October 24, 2018

Related Concept Videos

Anatomy of the Eyeball01:20

Anatomy of the Eyeball

The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Visual System01:26

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...