Small intestinal hamartomatous polyp due to Peutz-Jeghers syndrome in middle childhood

Toshihiko Kakiuchi1, Takashi Akutagawa2

  • 1Department of Pediatrics, Faculty of Medicine Saga University Saga Japan.

Insights

Early small-bowel surveillance is crucial for individuals with Peutz-Jeghers syndrome (PJS). Consistent monitoring from age 8 can prevent serious complications like intussusception and avoid emergency surgery.

Area of Science:

  • Gastroenterology
  • Pediatric Oncology
  • Clinical Genetics

Background:

  • Peutz-Jeghers syndrome (PJS) is a rare genetic disorder.
  • PJS patients have an increased risk of gastrointestinal and extraintestinal cancers.
  • Small-bowel surveillance is recommended for PJS patients.

Observation:

  • A case of intussusception and strangulated ileus in an 11-year-old PJS patient.
  • This complication occurred despite the general recommendation for surveillance.

Findings:

  • Current surveillance guidelines for PJS may not be sufficient to prevent acute complications.
  • Intussusception can occur in PJS patients even with recommended surveillance protocols.

Implications:

  • Small-bowel surveillance in PJS patients should be rigorously implemented starting at age 8.
  • Timely and effective surveillance is critical to prevent severe complications and the need for urgent surgical intervention.
  • Further research may be needed to optimize surveillance strategies for PJS to mitigate risks of intussusception and ileus.

Related Concept Videos

Histology of the Small Intestine01:27

Histology of the Small Intestine

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.
The intestinal lining features transverse folds called circular folds, each housing fingerlike projections known as intestinal villi. These villi are covered by a layer of simple columnar epithelium, also referred to as...
1.6K
Pleiotropy01:33

Pleiotropy

Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
41.0K
Renewal of Intestinal Stem Cells01:23

Renewal of Intestinal Stem Cells

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...
2.7K
Barrett Esophagus-I: Introduction01:21

Barrett Esophagus-I: Introduction

Barrett's esophagus is a medical condition where the esophageal mucosa is significantly damaged by stomach acid or other digestive fluids, often due to long-term exposure associated with gastroesophageal reflux disease (GERD). In GERD, a weakened or abnormally relaxed lower esophageal sphincter allows stomach acid to flow persistently into the esophagus.
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more...
191
Role Of Notch Signalling In Intestinal Stem Cell Renewal01:12

Role Of Notch Signalling In Intestinal Stem Cell Renewal

Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.2K
Barrett Esophagus-II: Clinical Manifestations and Management01:21

Barrett Esophagus-II: Clinical Manifestations and Management

Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure...
286