Related Experiment Video

Updated: Apr 27, 2026

An Intravital Microscopy-Based Approach to Assess Intestinal Permeability and Epithelial Cell Shedding Performance
07:32

An Intravital Microscopy-Based Approach to Assess Intestinal Permeability and Epithelial Cell Shedding Performance

Published on: December 3, 2020

5.5K

Mucin lakes or perforation?

V Pronisceva1, J Sebastian1, A Hamade1

  • 1General Surgical Department, QEQM Hospital, Margate, UK.

Journal of Surgical Case Reports
|June 21, 2014
PubMed

Insights

Post-treatment MRI scans for rectal mucinous adenocarcinoma show high T2 signal in mucin pools. This imaging finding complicates staging, as histology often differs, impacting surgical decisions.

Area of Science:

  • Oncology
  • Radiology
  • Gastroenterology

Background:

  • Mucinous adenocarcinoma presents unique challenges in imaging interpretation.
  • Chemoradiotherapy can alter tumor characteristics, potentially affecting MRI staging accuracy.

Purpose of the Study:

  • To report two cases of mucinous adenocarcinoma with similar post-chemoradiotherapy MRI findings.
  • To explore the implications of MRI signal characteristics on rectal cancer staging.
  • To highlight the difficulties in accurate MRI staging of mucinous adenocarcinomas.

Main Methods:

  • Case report of two patients with mucinous adenocarcinoma.
  • Magnetic resonance imaging (MRI) analysis, focusing on T2-weighted sequences.
  • Comparison of MRI findings with final histology reports.

Main Results:

  • Observed high signal intensity on T2-weighted MRI sequences within and beyond the rectal wall, attributed to mucin pools.
  • Discrepancies noted between MRI-predicted staging and final histology reports.
  • Identified potential confounding factors on MRI, including acellular mesothelial reaction, mucin pools, and inflammation.

Conclusions:

  • Post-chemoradiotherapy MRI findings in mucinous adenocarcinoma can be misleading, complicating accurate staging.
  • The behavior of mucin pools and their interaction with rectal tissues post-treatment requires further investigation.
  • Accurate staging is crucial for appropriate surgical management of rectal mucinous adenocarcinoma.

More Related Videos

Three-dimensional Quantification of Intestinal Mucus Using Whole-mount Tissue Imaging05:10

Three-dimensional Quantification of Intestinal Mucus Using Whole-mount Tissue Imaging

Published on: September 12, 2025

674
Ex Vivo Intestinal Sacs to Assess Mucosal Permeability in Models of Gastrointestinal Disease06:04

Ex Vivo Intestinal Sacs to Assess Mucosal Permeability in Models of Gastrointestinal Disease

Published on: February 9, 2016

21.0K

Related Concept Videos

Esophageal Perforation-I: Introduction01:22

Esophageal Perforation-I: Introduction

Esophageal perforation is a severe medical condition characterized by a breach in the integrity of the esophageal wall. This breach can occur due to various factors such as trauma, medical procedures, or underlying diseases. When the esophageal wall is compromised, it allows food, fluids, and digestive juices into the chest cavity or adjacent structures, leading to potential complications and health risks.
The location of esophageal perforation can vary, occurring anywhere along the esophagus....
841
Mucosal Barrier of the Stomach01:25

Mucosal Barrier of the Stomach

The gastric glands contain parietal cells that secrete hydrochloric acid (HCl) for digestion. The cells secrete HCl because it is highly corrosive and essential for breaking down food. To achieve this, they secrete hydrogen and chloride ions into the lumen of the gastric glands, which combine to form HCl.
Within parietal cells, carbonic acid is first formed through the reaction of water and carbon dioxide. The dissociation of carbonic acid releases bicarbonate and hydrogen ions. The bicarbonate...
2.6K
Peptic Ulcer01:27

Peptic Ulcer

Peptic ulcers are erosive lesions of the gastric or duodenal lining, most commonly caused by Helicobacter pylori infection. This Gram-negative, helical bacterium has adapted to survive the stomach’s acidic environment by producing urease, which converts urea into ammonia and carbon dioxide. The ammonia neutralizes gastric acid in the bacterium’s immediate environment, allowing colonization of the gastric mucosa. H. pylori attaches to mucus-secreting epithelial cells, penetrates the...
46
Esophageal Perforation-II: Clinical Manifestations and Management01:28

Esophageal Perforation-II: Clinical Manifestations and Management

Esophageal perforations manifest in various clinical forms, influenced by factors such as the perforation's cause and location (cervical, intrathoracic, or intra-abdominal), the extent of contamination, and potential injury to adjacent mediastinal structures. The timing between the perforation occurrence and treatment initiation also affects the clinical presentation.
Clinical Manifestations:
1.1K
Peptic Ulcer Disease II: Pathophysiology01:28

Peptic Ulcer Disease II: Pathophysiology

Peptic Ulcer Disease (PUD) is characterized by the development of ulcers in the stomach or duodenal mucosa. Its pathophysiology is complex, involving a balance between damaging and protective elements.
Damaging agents such as Helicobacter pylori, gastric acid, pepsin, and nonsteroidal anti-inflammatory drugs (NSAIDs) can weaken the mucosal defense, allowing hydrogen ions to infiltrate back and harm epithelial cells.
3.0K
Peptic Ulcer Disease II: Pathophysiology01:24

Peptic Ulcer Disease II: Pathophysiology

Peptic ulcer disease develops when protective mechanisms of the gastrointestinal mucosa are overwhelmed by harmful factors, leading to localized erosions in the stomach or proximal duodenum. The main causes are Helicobacter pylori infection and chronic use of nonsteroidal anti-inflammatory drugs (NSAIDs).Helicobacter pylori–Induced InjuryBacterial Adaptation and Colonization:H. pylori is a spiral, Gram-negative bacterium adapted to the acidic stomach. and transmitted through oral-oral or...
40