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Related Concept Videos

Assessment of the Rectum and Anus01:25

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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.
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The intestinal epithelial lining rapidly renews every 4 to 5 days. The renewal is facilitated by intestinal stem cells (ISCs) located at the base of the crypt– a gland located at the bottom of each villus. ISCs divide asymmetrically to form new stem cells and progenitor daughter cells. The daughter cells are called transit-amplifying (TA) cells which move upwards along the crypt and either differentiate into absorptive cells– the enterocytes or secretory cells– including the...
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Chronic bowel diseases are a group of long-term conditions affecting the digestive tract, characterized by inflammation and damage to the gut lining. These conditions primarily include irritable bowel syndrome and inflammatory bowel disease.
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The small intestine exhibits a unique histological structure that significantly enhances its function in digestion and nutrient absorption. These structures include circular folds, villi, and various specialized cells that collectively facilitate the digestion of food.
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Deficient Pms2, ERCC1, Ku86, CcOI in Field Defects During Progression to Colon Cancer
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Colorectal Subepithelial Lesions.

Tae Oh Kim1

  • 1Department of Internal Medicine, Inje University Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea.

Clinical Endoscopy
|August 5, 2015
PubMed
Summary

Accurate diagnosis of colorectal subepithelial lesions (SELs) is crucial for treatment and prognosis. Endoscopic ultrasonography (EUS) significantly improves the characterization and differential diagnosis of these lesions compared to endoscopy alone.

Keywords:
ColorectumSubepithelial lesionSubepithelial tumor

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Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Oncology

Background:

  • Subepithelial lesions (SELs) are often found incidentally during endoscopic screening.
  • Accurate differential diagnosis of SELs is essential due to varied prognoses and treatments.
  • Traditional endoscopy has limitations in characterizing the detailed nature of SELs.

Purpose of the Study:

  • To investigate the utility of endoscopic and endoscopic ultrasonography (EUS) findings in the diagnosis of colorectal SELs.
  • To correlate endoscopic and EUS findings with histological diagnoses.
  • To analyze treatment regimens and outcomes for colorectal SELs.

Main Methods:

  • Review of endoscopic and EUS findings for colorectal SELs.
  • Histological examination of diagnosed SELs.
  • Analysis of treatment strategies and patient outcomes.

Main Results:

  • Endoscopic ultrasonography (EUS) enhances the characterization of SELs, including size, internal properties, and contour.
  • EUS aids in differentiating between intramural tumors and extrinsic compressions.
  • EUS-guided biopsies enable histological confirmation and differential diagnosis.

Conclusions:

  • Endoscopic ultrasonography (EUS) is a valuable tool for the differential diagnosis of colorectal subepithelial lesions.
  • Combining EUS with histological analysis improves diagnostic accuracy and guides treatment decisions.
  • Accurate characterization of SELs using EUS impacts patient prognosis and management.