{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T11:42:30Z","timestamp":1776858150572,"version":"3.51.2"},"reference-count":25,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T00:00:00Z","timestamp":1774915200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Oncol."],"abstract":"<jats:p>\n                    Small Cell Carcinoma of the Ovary (SCCO) is an extremely rare form of ovarian cancer characterised by bi-allelic mutations in the\n                    <jats:italic>SMARCA4<\/jats:italic>\n                    gene, a member of the SWI\/SNF chromatin remodelling complex. Most previous analyses have characterised SCCO using whole exome sequencing; we present the treatment plans of two SCCO patients with post-treatment analysis of whole genome sequencing and tumour RNA sequencing which include structural variant and mutational signature analysis not previously reported in the literature for this cancer type. Both patients underwent salpingo-oophorectomy followed by BEP chemotherapy and pelvic radiotherapy leading to 34 month remission in one case though one patient died 12 months post-diagnosis. Consistent with known aetiology, we identified complete\n                    <jats:italic>SMARCA4<\/jats:italic>\n                    loss of function and probable\n                    <jats:italic>SMARCA2<\/jats:italic>\n                    expression loss in both patients. Beyond this, both tumours present remarkably low tumour mutational burdens and were microsatellite stable though one sample also showed chromosomal instability with high levels of inversions and a ploidy level of 2.8 which has not been well characterised in SCCO patients. This report contributes towards the small number of cases of SCCO that are currently documented and have their genome characterised in the literature.\n                  <\/jats:p>","DOI":"10.3389\/fonc.2026.1708314","type":"journal-article","created":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T05:34:51Z","timestamp":1774935291000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Case Report: Whole genome sequencing of small cell ovarian carcinomas"],"prefix":"10.3389","volume":"16","author":[{"given":"Sara","family":"Daoud","sequence":"first","affiliation":[{"name":"School of Medicine, Royal College of Surgeons in Ireland (RCSI) University of Medicine and Health Sciences","place":["Dublin, Ireland"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Emily","family":"Tinsley","sequence":"additional","affiliation":[{"name":"Genomic Oncology Research Group, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland (RCSI) University of Medicine and Health Sciences","place":["Dublin, Ireland"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ann","family":"Treacy","sequence":"additional","affiliation":[{"name":"Department of Histopathology, Mater Misericordiae University Hospital","place":["Dublin, Ireland"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Caroline","family":"Miller","sequence":"additional","affiliation":[{"name":"Department of Gynaecological Oncology, Mater Misericordiae Hospital","place":["Dublin, Ireland"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claire","family":"Thompson","sequence":"additional","affiliation":[{"name":"Department of Gynaecological Oncology, Mater Misericordiae Hospital","place":["Dublin, Ireland"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bryan T.","family":"Hennessy","sequence":"additional","affiliation":[{"name":"Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland (RCSI) University of Medicine and Health Sciences","place":["Dublin, Ireland"]},{"name":"Department of Medical Oncology, Beaumont Hospital","place":["Dublin, Ireland"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sinead","family":"Toomey","sequence":"additional","affiliation":[{"name":"Medical Oncology Group, Department of Molecular Medicine, Royal College of Surgeons in Ireland (RCSI) University of Medicine and Health Sciences","place":["Dublin, Ireland"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon J.","family":"Furney","sequence":"additional","affiliation":[{"name":"Genomic Oncology Research Group, Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland (RCSI) University of Medicine and Health Sciences","place":["Dublin, 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