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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...

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Mitosis and apoptosis in the pituitary gland: tumour formation or hyperplasia?

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Related Experiment Video

Updated: Jun 6, 2026

Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
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Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction

Published on: March 24, 2023

[Rectal cancer].

P Blanchard1, A Levy, J Breunot

  • 1Département de radiothérapie, institut Gustave-Roussy, Villejuif, France.

Cancer Radiotherapie : Journal De La Societe Francaise De Radiotherapie Oncologique
|December 7, 2010
PubMed
Summary
This summary is machine-generated.

Rectal cancer treatment involves chemoradiation and surgery. This review details optimal conformal radiation strategies, focusing on target volumes and dose constraints for improved outcomes.

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Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer
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Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer

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Last Updated: Jun 6, 2026

Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
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Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction

Published on: March 24, 2023

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer
12:45

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer

Published on: February 12, 2022

Area of Science:

  • Oncology
  • Radiation Oncology
  • Surgical Oncology

Context:

  • Rectal cancers represent a significant oncological challenge with 12,000 new cases annually in France.
  • The standard treatment for locally advanced or node-positive rectal cancers involves concurrent fluoropyrimidine-based chemoradiation followed by surgery with total mesorectal excision.
  • Irradiation techniques are tailored based on tumor location and local extension.

Purpose:

  • To review key epidemiological, anatomical, radiological, and prognostic factors influencing conformal radiation therapy for rectal cancers.
  • To discuss the definition of clinical target volumes (CTV), including the entire mesorectum and internal iliac lymph nodes.
  • To outline optimal radiation doses and dose constraints for organs at risk.

Summary:

  • Optimal conformal radiation for rectal cancer necessitates understanding tumor characteristics and relevant anatomical structures.
  • The clinical target volume encompasses the mesorectum and internal iliac lymph nodes, with irradiation tailored to tumor specifics.
  • This review synthesizes critical factors for defining precise radiation modalities, supported by a case report.

Impact:

  • Provides a comprehensive overview to guide radiation oncologists in optimizing treatment planning for rectal cancer.
  • Aims to enhance the precision of conformal radiation therapy, potentially improving treatment efficacy and reducing toxicity.
  • Contributes to the evidence base for standardized and individualized radiation approaches in rectal cancer management.