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- Title
Cancer risk and genotype–phenotype correlation in Japanese patients with Cowden syndrome.
- Authors
Teramae, Satoshi; Muguruma, Naoki; Okamoto, Koichi; Oseto, Kumiko; Nishikawa, Ryutaro; Tanoue, Takayuki; Hirata, Keiji; Yanai, Shunichi; Matsumoto, Takayuki; Shimizu, Seiji; Miwa, Jun; Sasaki, Yu; Yashima, Kazuo; Ohnuma, Hiroyuki; Sato, Yasushi; Kitayama, Yoshitaka; Ohda, Yoshio; Yamauchi, Atsushi; Sanomura, Yoji; Tanaka, Kumiko
- Abstract
Background: Cowden syndrome (CS) is an autosomal-dominant hereditary disorder caused by a germline PTEN variant and characterized by multiple hamartomas and a high risk of cancers. However, no detailed data on CS in Asian patients nor genotype–phenotype correlation have been reported. Methods: We performed the first Japanese nationwide questionnaire survey on CS and obtained questionnaire response data on 49 CS patients. Results: Patients included 26 females (median age 48 years). The incidence of breast, thyroid, endometrium, and colorectal cancer was 32.7%, 12.2%, 19.2% (among females), and 6.1%, respectively. The incidence of any cancers was relatively high among all patients (46.9%, 23/49), and particularly female patients (73.1%, 19/26), compared with previous reports from Western countries. Gastrointestinal (GI) polyps were more frequently found throughout the GI tract compared with previous studies. PTEN variants were detected in 95.6% (22/23) of patients; 12 in the N-terminal region (11 in phosphatase domain) and 10 in the C-terminal (C2 domain) region. The incidence of cancer in the C2 domain group was significantly higher than in the N-terminal region (phosphatase) group. All female patients with C2 domain variant had breast cancer. Conclusion: Our data suggest that Japanese patients with CS, particularly female patients and patients with C2 domain variant may have a high risk of cancers.
- Subjects
JAPANESE people; DISEASE risk factors; ASIANS; GASTROINTESTINAL system; WOMEN patients
- Publication
International Journal of Clinical Oncology, 2022, Vol 27, Issue 4, p639
- ISSN
1341-9625
- Publication type
Article
- DOI
10.1007/s10147-022-02116-w