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Microsatellite instability analysis in uterine cavity washings to detect endometrial cancer in Lynch syndrome. 2014

Anne-Sophie Bats, and Helene Blons, and Celine Narjoz, and Marie-Aude Le Frere-Belda, and Pierre Laurent-Puig, and Fabrice Lecuru
Université Paris Descartes, Sorbonne Paris Cité, Faculté de Médecine, Paris, France Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges-Pompidou, Chirurgie Cancérologique Gynécologique et du Sein, Paris, France INSERM UMR-S 747, Université Paris Descartes, Sorbonne Paris Cité, Paris, France anne-sophie.bats@egp.aphp.fr.

OBJECTIVE To assess the feasibility of Microsatellite Instability (MSI) analysis in uterine cavity washings for detecting endometrial cancer in Lynch syndrome. METHODS This was a proof-of-concept study in Lynch syndrome patients, scheduled for hysterectomy. At the beginning of surgical procedure, uterine cavity washings were performed, and sent for MSI analysis. Pathological examination of the uterus was associated with mismatch repair protein expression and MSI analysis. RESULTS Nine patients were included in the study. Uterine cavity washings were feasible and interpretable in all cases. Final histological report identified 2 endometrial cancers and 7 benign specimens. There was no atypical hyperplasia. Sensitivity, specificity, positive predictive value, and negative predictive value of MSI analysis in uterine washings reached 100% in all cases. Concordance of MSI presence or absence was absolute between uterine washings and final histology. CONCLUSIONS MSI analysis in uterine cavity washings may be a promising screening tool for Lynch syndrome-associated endometrial cancer diagnosis.

UI MeSH Term Description Entries
D007044 Hysterectomy Excision of the uterus. Hysterectomies
D007507 Therapeutic Irrigation The washing of a body cavity or surface by flowing water or solution for therapy or diagnosis. Douching,Lavage,Douchings,Irrigation, Therapeutic,Irrigations, Therapeutic,Lavages,Therapeutic Irrigations
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D011379 Prognosis A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations. Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D003123 Colorectal Neoplasms, Hereditary Nonpolyposis A group of autosomal-dominant inherited diseases in which COLON CANCER arises in discrete adenomas. Unlike FAMILIAL POLYPOSIS COLI with hundreds of polyps, hereditary nonpolyposis colorectal neoplasms occur much later, in the fourth and fifth decades. HNPCC has been associated with germline mutations in mismatch repair (MMR) genes. It has been subdivided into Lynch syndrome I or site-specific colonic cancer, and LYNCH SYNDROME II which includes extracolonic cancer. Colon Cancer, Familial Nonpolyposis, Type 1,Colorectal Cancer, Hereditary Nonpolyposis, Type 1,Familial Nonpolyposis Colon Cancer Type 1,Hereditary Nonpolyposis Colorectal Cancer,Hereditary Nonpolyposis Colorectal Cancer Type 1,Hereditary Nonpolyposis Colorectal Neoplasms,Lynch Syndrome,Colon Cancer, Familial Nonpolyposis,Colorectal Cancer Hereditary Nonpolyposis,Familial Nonpolyposis Colon Cancer,Hereditary Nonpolyposis Colon Cancer,Lynch Cancer Family Syndrome I,Lynch Syndrome I,Syndrome, Lynch
D005240 Feasibility Studies Studies to determine the advantages or disadvantages, practicability, or capability of accomplishing a projected plan, study, or project. Feasibility Study,Studies, Feasibility,Study, Feasibility
D005260 Female Females
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014594 Uterine Neoplasms Tumors or cancer of the UTERUS. Cancer of Uterus,Uterine Cancer,Cancer of the Uterus,Neoplasms, Uterine,Neoplasms, Uterus,Uterus Cancer,Uterus Neoplasms,Cancer, Uterine,Cancer, Uterus,Cancers, Uterine,Cancers, Uterus,Neoplasm, Uterine,Neoplasm, Uterus,Uterine Cancers,Uterine Neoplasm,Uterus Cancers,Uterus Neoplasm

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