Introduction: Peutz-Jeghers syndrome is a rare autosomal dominant inherited disorder characterized by hamartomatous intestinal polyps and mucocutaneous pigmentation. Most cases appear to be linked to the mutation of the STK11 gene. Patients are at a lifetime risk of gastrointestinal and non-gastrointestinal cancers.
Case Presentation: The present study offers the case of this rare disorder in a young woman revealed by jejunal obstruction caused by intussusception. A 32-year-old woman was referred to the surgical department with symptoms suggestive of an obstructive syndrome. On examination, there were multiple perioral pigmented lesions. An urgent exploratory laparotomy revealed bowel obstruction caused by an intussusception with a large polyp. The patient suffered another similar episode 4 years before leading to the diagnosis of Peutz-Jeghers Syndrome, however she was under no surveillance. Patients with pigmented lesions and a family member suffering from the mentioned syndrome should perform endoscopy and genetic tests to diagnose early and avoid complications.
Conclusion: Peutz-Jeghers Syndrome is difficult to treat due to its nonspecific symptomatology and late diagnosis. Life-threatening complications such as intussusception and various types of cancer are unanticipated. It is vital to diagnose and perform routine screening, which will make it possible to prolong the survival of many patients.