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Neoplastic transformation arising in Peutz-Jeghers polyposis
K Hizawa1, M Iida, T Matsumoto
1Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
Diseases of the Colon and Rectum
|October 1, 1993
Summary
Peutz-Jeghers polyposis can become malignant. This study found neoplastic transformation in 16% of polyps, suggesting a hamartoma-adenoma-carcinoma sequence in Peutz-Jeghers syndrome.
Area of Science:
- Gastroenterology
- Oncology
- Pathology
Background:
- Peutz-Jeghers syndrome is a rare genetic disorder.
- It is characterized by the development of hamartomatous polyps in the gastrointestinal tract.
- These polyps have the potential for malignant transformation.
Purpose of the Study:
- To investigate the malignant potential of Peutz-Jeghers polyps.
- To determine the frequency of neoplastic changes in these polyps.
- To explore the possibility of a hamartoma-adenoma-carcinoma sequence in Peutz-Jeghers polyposis.
Main Methods:
- Analysis of 75 gastrointestinal polyps from seven patients with Peutz-Jeghers syndrome.
- Surgical and endoscopic resection of polyps.
- Histopathological examination of resected polyps.
Main Results:
- 16% of polyps (12 out of 75) were neoplastic.
- Neoplastic changes, including adenomas and cancer, were observed in Peutz-Jeghers polyps.
- Two Peutz-Jeghers polyps showed cancerous transformation with stalk invasion.
- No significant size difference was found between neoplastic and hamartomatous polyps.
Conclusions:
- Neoplastic transformation is a significant risk in Peutz-Jeghers polyposis.
- The findings support a hamartoma-adenoma-carcinoma sequence in the progression of Peutz-Jeghers polyps.
- Early detection and management are crucial for patients with Peutz-Jeghers syndrome.