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Related Concept Videos

Cholecystitis01:20

Cholecystitis

Cholecystitis is inflammation of the gallbladder, most commonly caused by obstruction of the cystic duct. This blockage prevents bile from draining, leading to gallbladder distension, inflammation, and potentially serious complications. This condition may present acutely or chronically and can happen with or without gallstones.EtiologyAbout 95% of cholecystitis cases are calculous, caused by gallstones blocking the cystic duct, leading to bile accumulation and inflammation of the gallbladder...
Appendicitis01:19

Appendicitis

Appendicitis is an acute inflammatory condition of the vermiform appendix, most commonly caused by obstruction of its lumen. The appendix is a narrow, blind-ended pouch that extends from the cecum, making it particularly prone to obstruction. Causes include fecaliths, lymphoid hyperplasia (often after viral infections), parasites, tumors, or foreign bodies. This obstruction initiates a cascade of pathological changes.Luminal Obstruction and Early InflammationAfter obstruction, normal mucosal...
Diseases of the Liver and Gallbladder01:26

Diseases of the Liver and Gallbladder

Liver and gallbladder diseases are a significant health concern, with prominent conditions including cirrhosis, hepatitis, non-alcoholic fatty liver disease (NAFLD), and gallstones. Jaundice is a common manifestation of liver and biliary disease.
Cirrhosis is characterized by the scarring of hepatic lobules in the liver, which are replaced by fibrous tissue, affecting the liver's normal functioning. NAFLD, on the other hand, is caused by an excessive build-up of fat in the liver, not related to...
Gallbladder01:17

Gallbladder

The gallbladder is a small, pear-shaped organ that plays a crucial role in our digestive system. Measuring about 10 cm in length, it is comparable in size to a kiwi fruit and is located in a hollow area on the lower surface of the liver. The gallbladder's primary function is to store and concentrate bile, a fluid produced by the liver that aids in digestion.
The gallbladder's anatomy consists of three regions: the fundus, body, and neck. Extending from the neck, the cystic duct joins the common...
Gastritis II: Pathophysiology01:26

Gastritis II: Pathophysiology

The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...
Peptic Ulcer Disease I: Introduction01:30

Peptic Ulcer Disease I: Introduction

Peptic Ulcer Disease (PUD) is characterized by mucosal excavation in the esophagus, stomach, pylorus, or duodenum. It can manifest as acute or chronic based on the extent and duration of mucosal involvement.
An acute ulcer, marked by superficial erosion and minimal inflammation, swiftly resolves upon identifying and addressing the underlying cause. In contrast, a chronic ulcer persists, potentially eroding through the muscular wall and forming fibrous tissue.
Peptic ulcers can also be...

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Related Experiment Video

Updated: Jun 27, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

[Factors associated with malignancy in gallbladder polyps without gallbladder stone].

Jae Seung Lee1, Kyu Taek Lee, Jae Hong Jung

  • 1Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea.

The Korean Journal of Gastroenterology = Taehan Sohwagi Hakhoe Chi
|December 17, 2008
PubMed
Summary

Gallbladder polyp size is a key indicator of malignancy. While a 10 mm size criterion offers high sensitivity for detecting neoplastic polyps, its low specificity suggests it shouldn't be the sole factor for surgical decisions.

Related Experiment Videos

Last Updated: Jun 27, 2026

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
06:46

Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery

Published on: September 27, 2024

Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Pathology

Context:

  • Gallbladder polyps are common findings during abdominal imaging.
  • Differentiating neoplastic from non-neoplastic polyps is crucial for patient management.
  • Malignant transformation of gallbladder polyps, though rare, necessitates accurate risk stratification.

Purpose:

  • To identify predictive factors for neoplastic gallbladder polyps.
  • To analyze the association between polyp size and malignancy.
  • To evaluate the diagnostic performance of size criteria for surgical intervention.

Summary:

  • This study analyzed 354 patients with gallbladder polyps, comparing neoplastic and non-neoplastic types.
  • Age, polyp size, number of polyps, diabetes, and symptoms were associated with neoplastic polyps; age, size, and number were independent predictors.
  • A 10 mm size criterion showed high sensitivity (94.4%) but low specificity (18.3%) for neoplastic polyps, while a 12 mm criterion had 76.0% sensitivity and 55.5% specificity.

Impact:

  • Polyp size is the most significant factor for predicting malignancy in gallbladder polyps.
  • The 10 mm size criterion is insufficient alone due to low specificity, and should not be the absolute determinant for surgery.
  • Findings aid in refining diagnostic and surgical decision-making for gallbladder polyps.