Osseous metaplasia of ovarian cyst: a rare case report

Anil Kumar Singh, Priyanka Gogoi, Preeti Diwaker, Bhuvan Adhlakha, Aishwary Gayatree
In: International Surgery Journal · 2018 · vol. 5(9) , pp. 3164 · doi:10.18203/2349-2902.isj20183741 · W2888255255
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This case report describes the incidental finding of osseous metaplasia within an endometriotic cyst in a 42-year-old female patient undergoing a hysterectomy.

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This paper is a rare case report describing incidental osseous metaplasia within an endometriotic (chocolate) ovarian cyst resected from a 42-year-old woman who underwent total abdominal hysterectomy with bilateral salpingo-oophorectomy for a provisional diagnosis of AUB. The authors note that osseous metaplasia in ovarian lesions is uncommon and is most often reported with dermoid cysts or certain neoplasms, with ossification of endometriotic cysts (“chocolate cysts”) being a specific context previously described only rarely. The main limitation is that the report presents a single clinical and pathological case without broader study or generalizable analysis. This paper is centrally about endometriosis — it documents osseous metaplasia (ossification) occurring in an endometriotic ovarian “chocolate” cyst.

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Abstract

Osseous metaplasia has been described at many sites, however previous reports of osseous metaplasia in ovarian lesions are rare. This is most commonly associated with dermoid cyst, osseous metaplasia in stroma rich in serous or mucinous neoplasm and ossification of endometriotic cyst (chocolate cyst). Here The authors report a case of incidental finding of osseous metaplasia in the endometriotic cyst (chocolate cyst) of resected ovary in 42-year-old female who had gone for total abdominal hysterectomy with bilateral salpingo-oophorectomy for provisional diagnosis of AUB.
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Osseous metaplasia of ovarian cyst: a rare case report DOI: https://doi.org/10.18203/2349-2902.isj20183741Keywords: Endometriotic cyst, Osseous metaplasia, Ovarian cystAbstract Osseous metaplasia has been described at many sites, however previous reports of osseous metaplasia in ovarian lesions are rare. This is most commonly associated with dermoid cyst, osseous metaplasia in stroma rich in serous or mucinous neoplasm and ossification of endometriotic cyst (chocolate cyst). Here The authors report a case of incidental finding of osseous metaplasia in the endometriotic cyst (chocolate cyst) of resected ovary in 42-year-old female who had gone for total abdominal hysterectomy with bilateral salpingo-oophorectomy for provisional diagnosis of AUB. Metrics References Shaco LR, Lazer T, Piura B, Wiznitzer A. Ovarian ossification associated with endometriosis. Clin Exp Obstel Gynecol. 2007;34(2):113-4. Badawy SZ, Kasello DJ, Powers C, Elia G, Wojtowycz AR. Supernumerary ovary with an endometrioma and osseous metaplasia: a case report. Am J Obstet Gynecol. 1995;173:1623-4. Zahn CM, Kendall BS. Heterotopic bone in the ovary associated with a mucinous cystadenoma. Mil Med. 2001;166:915-7. Clement PB, Cooney TP. Idiopathic multifocal calcification of the ovarian stroma. Arch Pathol Lab Med. 1992;116(2):204-5. Silva EG, Deavers MT, Parlow AF, Gershenson DM, Malpica A. Calfications in ovary and endometrium and their neoplasms. Mod Pathol. 2003;16(3):219-22. Su WH, Wang PH, Chang SP. Ovarian stone: a case report. J Reprod Med. 2002;47(4):329-31. Kennedy LA, Pinckney LE, Curranino G, Votteler TP. Amputated calcified ovaries in children. Radiol. 1981;141(1):83-6. Pervatikar SK, Rao R, Dinesh US. Ossifying lutinized thecoma of the ovary with endometrial adenocarcinoma. Indian J Pathol Microbiol. 2009;52(2):222-4. Zahn CM, Kendall BS. Heterotopic bone in the ovary associated with a mucinous cystadenoma. Mil Med. 2001;166(10):915-7.

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