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[Polyps (single or multiple) and juvenile polyposis]
A Agnifili1, M Schietroma, S Mattucci
1Cattedra di Chirurgia Geriatrica, Università degli Studi, L'Aquila, Italy.
Insights
Juvenile familial polyposis (JFP) involves numerous hamartomatous polyps that can become cancerous. Early diagnosis via genetic screening and endoscopic evaluation is crucial for managing this autosomal dominant condition.
Area of Science:
- Gastroenterology
- Genetics
- Oncology
Context:
- Juvenile familial polyposis (JFP) is an autosomal dominant condition.
- Characterized by hundreds of hamartomatous polyps in the colo-rectal tract.
- Presents with varying polyp numbers: single, multiple (>=5), or sporadic forms.
Purpose:
- To analyze a case of JFP with extensive polyposis.
- To differentiate JFP from adenomatous polyps based on epidemiology, pathology, clinical course, and genetics.
- To outline diagnostic and management strategies for JFP.
Summary:
- JFP polyps are mucous hamartomas with malignant transformation potential (68% to carcinoma if untreated).
- Key differences from adenomatous polyps include earlier onset, distinct stromal features, potential for self-recovery, and unique genetic loci (10q23.3-18q21).
- Diagnostic methods include colonoscopy, ileoscopy, gastroscopy, barium enema, and genealogical screening.
- Biopsy is essential for detecting neoplastic changes.
- Treatment involves endoscopic removal for single/multiple polyps and surgery (colectomy) for JFP, with rigorous follow-up recommended.
Impact:
- Highlights the importance of early detection and genetic screening for JFP.
- Emphasizes the need for comprehensive diagnostic workup including full gastrointestinal tract evaluation.
- Underscores the necessity of long-term monitoring for patients and their families to prevent carcinoma development.
Abstract:
The authors underline the important aspects of juvenile familial polyposis (JFP), a disease transmitted as an autosomal dominant trait. A case of JFP characterized by the presence of hundreds of polyps in the colo-rectal intestinal tract, is analyzed. The single juvenile polyp, multiple polyps (=/>5 polyps) and the sporadic form are examined. These are mucous hamartomas which can undergo neoplastic transformation (in carcinoma in 68% of untreated cases), a behaviour similar to that of adenomatous polyps. They differ from the later due to the following features: epidemiology (earlier appearance age), anatomopathology (stroma), clinical observation (self-recovery in some cases) and genetics (10q23.3-18q21, genetic mutations in a locus different those of adenomatous polyps). It is also necessary to determine its extension by means of colonoscopy, ileoscopy, gastroscopy and small bowel barium enema. Patients' screening through construction of the genealogical family tree is fundamental. Isolation of possible degenerative aspects of the polyps through biopsy is also fundamental. Single or multiple polyps are treated endoscopically, the juvenile polyposis is treated surgically (colectomy, total colectomy). A rigorous follow-up of the patients and their family members is recommended.