聚合酶校对相关的多重症病例:基因诊断中的挑战
Haruka Ito1, Akiko Chino1, Arisa Ueki2
1Department of Gastroenterology Cancer Institute Hospital of Japanese Foundation for Cancer Research Tokyo Japan.
概括
聚合酶校对相关多重症 (PPAP) 是一种罕见的遗传综合征. 这一案例突出了诊断挑战和基因测试对于准确的PPAP诊断的重要性.
科学领域:
- 遗传学 是一个遗传学.
- 在瘤学瘤学.
- 遗传性癌症综合征 遗传性癌症综合征
背景情况:
- 聚合酶校对相关多重症 (PPAP) 是一种罕见的自体主导遗传综合征.
- 它是由POLE或POLD1基因中的生殖系致病变体引起的.
- 由于与家族性腺瘤多重症 (FAP) 和林奇综合征的临床相似性,PPAP经常被忽视.
研究的目的:
- 在日本报告一种罕见的PPAP病例.
- 为了说明遗传多症综合征的诊断复杂性.
- 强调基因检测在PPAP诊断中的作用.
主要方法:
- 综合基因检测,包括多基因小组分析.
- 不确定意义的POLE变体的变体重新解释 (VUS).
- 临床表型评估.
主要成果:
- 一名患有多种原发性恶性瘤的50岁妇女被诊断出患有PPAP.
- 对于FAP和林奇综合征的初始遗传测试是负的.
- 随后的多基因小组测试和变体重新解释确定了可能的致病性POLE变体,证实了PPAP.
结论:
- 这一案例凸显了鉴定PPAP的诊断挑战,特别是在日本.
- 多基因小组测试和变异重新解释对于准确的PPAP诊断至关重要.
- 多学科护理和持续监测对于管理PPAP患者至关重要.
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