Abstract
Lynch syndrome (LS) is an autosomal dominant inherited disease caused by germline mutations in DNA mismatch repair (MMR) genes, including MLH1, MSH2, MSH6, and PMS2, which predisposes patients to various malignant neoplasms. Previous studies showed that MLH1, MSH2, MSH6, and PMS2 mutation in LS were associated with an elevated risk of colorectal, gastric, endometria, ovarian, and other cancers among family members. Patients of these kinds of cancers had high incidence of synchronous and metasynchronus. We describe the case of a 34-year-old female patient with 50 days of sudden dizziness and left limb weakness, whose head CT scan showed large infarction in the right frontal temporal parietal lobe and basal ganglia area. Imaging examinations and pathological biopsy indicated high-grade serous carcinoma (HGSC) IIIA1 of the right ovary. In addition, a novel frame-shift mutation in the MLH1 gene (c.1621dupG, p.A541Gfs*16) was found in the genetic panel sequence. It may render declining of MLH1 protein and also associate with the patient’s progressive clinical manifestations of multiple systems. Therefore, the timely use of prenatal diagnosis to prevent unnecessary new cases of this severe genetic disease is available.
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02 February 2021
A Correction to this paper has been published: https://doi.org/10.1007/s10072-021-05098-1
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Funding
This research was funded by the Key Research and Development Program of Hunan Province (No. 2020SK2063), the Natural Science Foundations of Hunan Province (No. 2020JJ4134&2020JJ4893), and the National Natural Science Foundation of China (No. 81501025).
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The patients were treated by Dr. Liu, Dr. Chen, Dr. Fan, and Dr. Hu who were responsible for collection of data; this manuscript was written by Dr. Zhang, Dr. Yang, and Dr. Liu.
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This study was approved by the ethics committee of Xiangya Hospital of Central South University. Written informed consent was obtained from the patient in this study.
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The original online version of this article was revised: The original article contains an error. In the “Discussion”, the patient’s age in the case presentation part should be 34 years old, not 43 years old.
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Zhang, M., Yang, H., Chen, Z. et al. Lynch syndrome-associated repeated stroke with MLH1 frame-shift mutation. Neurol Sci 42, 1631–1635 (2021). https://doi.org/10.1007/s10072-020-04987-1
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DOI: https://doi.org/10.1007/s10072-020-04987-1