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Hereditary gynecological tumors associated with Peutz-Jeghers syndrome (Review)
Kouji Banno1, Iori Kisu, Megumi Yanokura
1Department of Obstetrics and Gynecology, School of Medicine, Keio University, Tokyo 160-8582, Japan.
Insights
Peutz-Jeghers syndrome (PJS) involves gastrointestinal polyps and skin spots, linked to the STK11 gene. This hereditary condition increases the risk of gynecological tumors, including minimal deviation adenocarcinoma.
Area of Science:
- Genetics
- Gynecology
- Oncology
Background:
- Peutz-Jeghers syndrome (PJS) is an autosomal dominant disorder characterized by hamartomatous polyposis and mucocutaneous pigmentation.
- The condition is associated with mutations in the tumor suppressor gene STK11/LKB1.
- PJS predisposes individuals to various benign and malignant tumors, with increasing recognition of gynecological manifestations.
Purpose of the Study:
- To highlight the association between Peutz-Jeghers syndrome and gynecological tumors.
- To discuss the role of STK11 gene mutations in the development of these tumors.
- To emphasize the significance of PJS as a hereditary gynecological cancer syndrome.
Main Methods:
- Literature review focusing on PJS and associated gynecological conditions.
- Analysis of the genetic basis of PJS, particularly STK11 mutations.
- Review of recent case reports and studies on gynecological tumors in PJS patients.
Main Results:
- Minimal deviation adenocarcinoma (MDA) occurs in 10% of PJS cases, with STK11 mutations influencing its development and prognosis.
- Lobular endocervical glandular hyperplasia (LEGH), a precancerous cervical lesion, has been linked to germline STK11 mutations.
- PJS patients exhibit a high risk for endometrial cancer.
Conclusions:
- Peutz-Jeghers syndrome is a significant hereditary condition with substantial gynecological cancer risks.
- STK11 gene mutations play a crucial role in the pathogenesis of PJS-related gynecological tumors.
- Further research into PJS is warranted due to its implications for hereditary gynecological oncology.
Abstract:
Peutz-Jeghers syndrome (PJS) is an autosomal dominant disease that is characterized by gastrointestinal hamartomatous polyposis and mucocutaneous melanin spots. The tumor suppressor gene, STK11/LKB1, which is located on chromosome 19p13.3, has been reported to be responsible for this condition. PJS is complicated by benign and malignant tumors of various organs and complications from rare diseases, including sex cord tumor with annular tubules (SCTAT) and minimal deviation adenocarcinoma (MDA), which have also recently attracted attention in the field of gynecology. Among the total MDA cases, 10% are complications of PJS, and mutations in the STK11 gene are closely associated with the development and prognosis of MDA. Furthermore, a new type of uterine cervical tumor, lobular endocervical glandular hyperplasia (LEGH), has been identified and has been predicted to be a precancerous lesion of MDA. The first case of LEGH induced by a germline STK11 mutation has also been described. A high risk of endometrial cancer in PJS has also been reported. These developments suggest that PJS is an important syndrome of hereditary gynecological tumors that requires further study.
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