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  • Title: A Case of Solitary Peutz-Jeghers Syndrome Leading to Chronic Small Bowel Obstruction Due to Intussusception From a Large Hamartomatous Polyp.
    Author: Edmondson E, Mihalopulos G, Kwok PE, Dellert A, Olsen L, Zhang ZJ.
    Journal: Cureus; 2023 Apr; 15(4):e37679. PubMed ID: 37206505.
    Abstract:
    We report a case of a 33-year-old male who presented to the emergency department with a three-day history of severe diffuse abdominal pain associated with anorexia, nausea, and vomiting. Computed tomography (CT) imaging of the abdomen and pelvis revealed a long segment of intussusception in the proximal jejunum and a round lesion along the intussusception with punctate hyperdensities. The patient underwent a diagnostic laparoscopy converted to open small bowel resection and end-to-end anastomosis that demonstrated a pedunculated jejunal mass. The mass was removed, and the pathology revealed a hamartomatous polyp with features of Peutz-Jeghers syndrome (PJS). The patient did not have a family history, previous endoscopic findings, or physical exam findings such as mucocutaneous pigmentation that could be attributed to PJS.  Definitive diagnosis of solitary PJS-type hamartomatous polyps depends on histopathological findings. Genetic analysis for mutations of the PJS susceptible gene, STK11/LB1 located at 19p13.3, as well as loss of heterozygosity at that locus, have been used for the diagnosis of PJS. In patients with large pedunculated hamartomatous polyps, chronic intussusception can occur. If pathology reveals features of Peutz-Jeghers, but the patient lacks the characteristic mucocutaneous pigmentation, family history of PJS, or additional polyps within the GI tract, then solitary PJS may be suspected.
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