Abstract:
:One of a pair of monozygous twins was diagnosed and died of small cell carcinoma of the ovary of hypercalcemic type (SCCOHT) at the age of 30 years. Her sister remained unaffected and was very concerned about her risk for developing SCCOHT. By performing comprehensive molecular analysis using whole exome sequencing (WES) approach, we showed that the deceased twin's tumour has bi-allelic somatic genetic defects (a pathogenic frameshift deletion in SMARCA4 and LOH on chr19p). Results of WES of constitutional DNA from her unaffected sister were confirmatory. Based on our findings, we concluded that the living twin is not at risk for SCCOHT and does not need to consider preventive oophorectomy.
journal_name
Fam Cancerjournal_title
Familial cancerauthors
Fahiminiya S,Sabbaghian N,Albrecht S,Nadaf J,Callegaro-Filho D,Foulkes WDdoi
10.1007/s10689-018-0108-0subject
Has Abstractpub_date
2019-04-01 00:00:00pages
161-163issue
2eissn
1389-9600issn
1573-7292pii
10.1007/s10689-018-0108-0journal_volume
18pub_type
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