Update on imaging of Peutz-Jeghers syndrome

Area of Science:

• Gastroenterology
• Genetics
• Oncology

Background:

• Peutz-Jeghers syndrome (PJS) is an autosomal dominant disorder caused by STK11 gene mutations.
• It is characterized by hamartomatous polyps in the GI tract and mucocutaneous hyperpigmentation.
• PJS significantly increases the risk of gastrointestinal and extra-intestinal cancers, particularly in the small bowel.

Purpose of the Study:

• To review the pathological, clinical, and imaging features of small-bowel abnormalities in PJS.
• To evaluate the role and performance of recent imaging modalities in PJS management.
• To highlight the importance of small-bowel surveillance for PJS patients.

Main Methods:

• Review of literature on Peutz-Jeghers syndrome.
• Discussion of diagnostic and surveillance techniques including video capsule endoscopy, enteroscopy, CT, and MRI.
• Analysis of imaging features of small-bowel polyps and associated risks.

Main Results:

• PJS polyps pose risks of bleeding, intussusception, and obstruction.
• Small-bowel surveillance is recommended to detect large polyps and guide interventions.
• Advanced imaging techniques play a vital role in PJS patient management.

Conclusions:

• Early detection and regular surveillance of small-bowel abnormalities are essential in PJS.
• Modern imaging modalities improve the detection and follow-up of PJS-related conditions.
• Timely endoscopic or surgical intervention based on surveillance findings can mitigate PJS complications.