Struma ovarii: two case reports of a rare teratoma of the ovary.

Authors :: Rockson O
Kora C
Ramdani A
Basma A
Bouhout T
Serji B
El Harroudi T
Source :: Journal of surgical case reports [J Surg Case Rep] 2020 Dec 07; Vol. 2020 (12), pp. rjaa493. Date of Electronic Publication: 2020 Dec 07 (Print Publication: 2020).
Publication Year :: 2020
Abstract: Struma ovarii is an extremely rare type of ovarian teratoma distinguished by the unusual presence of thyroid tissue. It is usually a benign condition; however, malignant transformation is sometimes detected. The diagnosis relies on histopathological examination and is infrequently made on routine investigations. We report two cases of struma ovarii: one benign and the other malignant. The first case involved a 27-year-old woman who underwent a right ovarian cystectomy for an incidental ultrasonographic finding of a solid right adnexal mass. The diagnosis of a benign struma was made after histopathological study. The second case involved a 68-year-old woman who underwent a right salpingo-oophorectomy for a right ovarian bulky mass and the histopathological diagnosis was consistent with that of a malignant struma. We examine the challenges involved in the diagnosis and management of this rare entity.<br /> (Published by Oxford University Press and JSCR Publishing Ltd. All rights reserved. © The Author(s) 2020.)