Related Experiment Video
Updated: Jun 2, 2026

A Metadata Extraction Approach for Clinical Case Reports to Enable Advanced Understanding of Biomedical Concepts
Published on: September 20, 2018
Case studies in the diagnosis and management of Peutz-Jeghers syndrome
Douglas Riegert-Johnson1, Maegan Roberts, Ferga C Gleeson
1Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA. riegertjohnson.douglas@mayo.edu
Abstract:
Peutz-Jeghers syndrome (PJS) is a rare genetic disorder characterized by melanotic macules, gastrointestinal polyps and increased cancer risks. We discuss several common scenarios encountered in the diagnosis and management of PJS patients. If the diagnosis is unclear, all pathological material should be re-evaluated by an expert gastrointestinal pathologist. The PJS discussion email list-serve (patient managed) and the peutz-jeghers.com, geneclinics.org, stk11.com websites are useful resources for patients. Cancer surveillance is accepted as a method to increase survival for PJS patients, thus all PJS patients should be prescribed an individualized surveillance plan based on personal and family history as well as available health care resources while taking into consideration the preferences of the patient. Several recent incremental improvements in PJS care have been made including the use of magnetic resonance enterography (MRE) and double balloon endoscopy (DBE). MRE combines cancer and small intestinal polyp surveillance, which previously had required two or more separate tests. How and when to perform pancreatic cancer surveillance continues to be an unclear area in the management of PJS patients. Endoscopic ultrasound (EUS) is probably the most sensitive investigation for pancreatic cancer detection at an early stage when cure may be possible. However, EUS is limited by variability and false positive results. Female patients with PJS are at risk for two rare cancers that require regular surveillance, adenoma malignum and ovarian sex cord tumors with annular tubules.
Insights
Peutz-Jeghers syndrome (PJS) is a rare genetic disorder. This guide offers insights into PJS diagnosis, management, and surveillance strategies to improve patient survival and care.
Area of Science:
- Genetics
- Gastroenterology
- Oncology
Background:
- Peutz-Jeghers syndrome (PJS) is a rare autosomal dominant disorder.
- Characterized by mucocutaneous pigmentation, hamartomatous polyps in the gastrointestinal tract, and a significantly increased risk of various cancers.
Observation:
- Diagnostic challenges and management strategies for PJS patients are discussed.
- Expert pathological review is crucial for unclear diagnoses.
- Online resources and patient-managed forums provide valuable support.
Findings:
- Individualized cancer surveillance plans are essential for PJS patients.
- Magnetic Resonance Enterography (MRE) and Double Balloon Endoscopy (DBE) offer advancements in surveillance.
- Pancreatic cancer surveillance remains an area needing clarification, with Endoscopic Ultrasound (EUS) showing promise but limitations.
Implications:
- Improved diagnostic accuracy and management protocols can enhance patient outcomes.
- Advanced imaging techniques like MRE and DBE improve surveillance efficiency.
- Further research is needed to optimize pancreatic cancer surveillance in PJS patients.
Related Concept Videos
Barrett Esophagus-II: Clinical Manifestations and Management
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the colonic...
Irritable Bowel Syndrome II: Clinical Features and Diagnostic Evaluation
Irritable Bowel Syndrome (IBS) is classified into subtypes based on the predominant bowel habits as determined by the Bristol Stool Form Scale (BSFS). The subtypes are:
Chronic Pancreatitis II: Collaborative Care
Assessment:
Cushing Syndrome II: Pathophysiology
Nephrotic Syndrome II : Assessment and Medical Management