{"paper_id":"4c5871ef-92a0-4670-934a-785b67a8b70b","body_text":"Abstract\nBackground\nEndometriosis occurring in a surgical scar is well recognized and occurs mainly in patients with a history of hysterectomy or Caesarean section. Scar endometriosis, as well as endometriosis at other sites, can undergo malignant change. Endometrioid carcinoma is the most common malignant tumour arising in endometriosis. However, clear cell carcinoma can also occur but is unusual.\nAim\nTo discuss the diagnosis and management of such a case.\nMethods\nWe report a case of primary clear cell carcinoma in endometriosis of a Caesarean section scar and review the literature.\nResults\nThe patient presented with a large right lower quadrant abdominal wall mass within a Caesarean section scar. Histological examination revealed a clear cell carcinoma. The patient had a prior history of pelvic endometriosis. According to the Irish National Cancer Registry, this is the first reported case of a primary abdominal wall clear cell carcinoma developing within a Caesarean section scar in Ireland.\nConclusion\nAny lesion occurring in a Caesarean section scar with a history of previous endometriosis cannot be underestimated and warrants careful clinical follow-up and histological evaluation as appropriate.\nSimilar content being viewed by others\nReferences\nHonore GM. Extrapelvic endometriosis.Clin Obstet Gynecol 1999; 42: 699–711\nPhupong V, Triratanachat S. Caesarean section scar endometriosis: a case report and review of literature.J Med Assoc Thai (Thailand) 2002;85: 733–8\nRobert CS, Rajesh D, Rex CB. Malignancy in Endometriosis: Frequency and comparison of ovarian and extra ovarian types.Int J Gynecol Pathol 2001; 20: 133–139\nSampson JA. Endometrial carcinoma of ovary arising in endometrial tissue in that organ.Arch Surg 1925; 10: 1–12\nKoger KE, Shatney CH, Hodge K. Surgical scar endometrioma.Surg Gynecol Obstet 1993; 177: 243–6.\nGucer F, Pieber D, Arikan MG. Malignancy arising in extraovarian endometriosis during estrogen stimulation.Eur J Gynecol Oncol 1998; 19: 39–41\nBrunson GL, Barclay, Sanders M, Araoz CA. Malignant extra ovarian Endometriosis Two case reports and review of the literature.Gynecol Oncol 1988;30: 123–30\nAuthor information\nAuthors and Affiliations\nCorresponding author\nRights and permissions\nAbout this article\nCite this article\nAlberto, V.O., Lynch, M., Labbei, F.N. et al. Primary abdominal wall clear cell carcinoma arising in a Caesarean section scar endometriosis. Ir J Med Sci 175, 69–71 (2006). https://doi.org/10.1007/BF03169006\nIssue date:\nDOI: https://doi.org/10.1007/BF03169006","source_license":"public-domain-us","license_restricted":false}