Juvenile Polyps in Denmark From 1995 to 2014

Area of Science:

• Gastroenterology
• Pediatric Gastroenterology
• Colorectal Surgery

Background:

• Juvenile polyps are the most common type of polyp in children but are rare overall.
• Their prevalence and incidence in adults are largely unknown.
• Typically, juvenile polyps have no malignant potential unless associated with juvenile polyposis syndrome.

Purpose of the Study:

• To investigate the demographics of juvenile polyps in Denmark over a 20-year period (1995-2015).
• To report on the occurrence, anatomical location, and recurrence of these polyps in the general population.
• To provide insights into the epidemiology of juvenile polyps in both pediatric and adult populations.

Main Methods:

• Utilized data from the nationwide Danish Pathology Data Bank.
• Analyzed records of 1772 patients diagnosed with juvenile polyps between January 1, 1995, and December 31, 2014.
• Collected data on patient sex, age, polyp number, recurrence, and localization.

Main Results:

• Approximately 75% of juvenile polyps were found in adults, and 25% in children.
• Most patients (96%) had a single juvenile polyp without recurrence.
• 1% met criteria for juvenile polyposis syndrome; 5% had multiple polyps (2-5). Estimated incidence is 1:45,000 to 1:65,000.

Conclusions:

• Juvenile polyps are uncommon, predominantly occurring in adults as solitary lesions.
• A subset of patients present with juvenile polyposis syndrome, necessitating regular follow-up.
• Potential for miscoding in the register and limited data on recurrence and procedures were noted limitations.