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Related Concept Videos

The Pineal Gland01:02

The Pineal Gland

The pineal gland, a diminutive endocrine structure named for its pinecone-shaped appearance, is situated atop the third ventricle within the diencephalon region of the forebrain. This gland, composed of secretory cells known as pinealocytes arranged in compact cords and clusters around dense particles of calcium salts, plays a pivotal role in hormonal regulation.
The primary secretion of the pineal gland is the hormone melatonin, derived from serotonin. The concentration of melatonin in the...
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In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses a challenge in...

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Related Experiment Video

Updated: Jun 7, 2026

Endoscopic Third Ventriculostomy and Pineal Biopsy from a Single Entry Point
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Endoscopic Third Ventriculostomy and Pineal Biopsy from a Single Entry Point

Published on: June 28, 2024

Pineal region tumors in children.

Girish Dhall1, Soumen Khatua, Jonathan L Finlay

  • 1Division of Pediatric Hematology-Oncology at Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California 90027, USA. gdhall@chla.usc.edu

Current Opinion in Neurology
|November 3, 2010
PubMed
Summary

Pediatric pineal tumors like pineoblastoma and germ cell tumors (GCTs) show varied outcomes. Advances in chemotherapy and irradiation improve survival for GCTs, though pineoblastoma in young children remains challenging.

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Area of Science:

  • Pediatric oncology
  • Neuro-oncology
  • Tumor biology

Background:

  • Pineal tumors are rare in children.
  • Pineoblastoma and germ cell tumors (GCTs) are the most common types.
  • Management strategies and treatment outcomes are areas of active research.

Purpose of the Study:

  • To review recent advances in the treatment of pediatric pineal tumors.
  • To discuss controversies in the management of pineoblastoma and GCTs.
  • To highlight differences in outcomes based on age and tumor type.

Main Methods:

  • Review of current literature on pediatric pineal tumors.
  • Analysis of treatment strategies for pineoblastoma and GCTs.
  • Discussion of diagnostic controversies and therapeutic approaches.

Main Results:

  • Pineoblastoma exhibits heterogeneous clinical behavior, with age-dependent outcomes.
  • Controversies in GCT management include diagnostic criteria, role of surgery, and optimal treatment for specific subtypes.
  • Treatment strategies for GCTs involving chemotherapy and reduced-dose irradiation show promise.

Conclusions:

  • Pineoblastoma in infants and young children presents a therapeutic challenge.
  • Significant progress has been made in treating pineal GCTs, improving survival rates.
  • Combined chemotherapy and irradiation reduce long-term morbidity in pediatric GCT patients.