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EP30.11: Case report: unexpected rare ovarian cyst in a nulligravid
Author(s) -
Sim J.Y.,
Sigue A.J.
Publication year - 2019
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1002/uog.21735
Subject(s) - struma ovarii , medicine , cystadenoma , mucinous cystadenoma , serous fluid , ovary , cyst , serous cystadenoma , pathology , radiology , pancreas
A 28 year old, nulligravid, asymptomatic woman had an incidental finding of ovarian cyst on ultrasound examination. On routine gynecologic check-up, ultrasound examination showed a large unilocular cystic structure in the left ovary with benign features. It measured 8.69 x 6.51 x 5.82 cm, volume of 172 mL, with echogenic lines and dots, highly considering dermoid cyst. There was no flow on color mapping. No ovarian tissue however was noted (Figure 1a). The patient, then, consulted a gynecologist wherein she was advised to have a repeat scan after 2 menstrual cycles. Repeat scan still revealed a large unilocular cystic structure in the left ovary with benign features measuring 9.55 x 7.06 x 9.39 cm, volume of 331.49 mL with echogenic lines and dots and has no color flow. There was also note of normal ovarian tissues (Figure 1b). On follow-up, the tumor markers (CA125, HE4) requested were within normal limits. The patient was advised and underwent operation. After a laparoscopic left oophorocystectomy, extensive sampling of the specimen and immunohistochemistry confirmed two pathologies; a struma ovarii co-existing side by side with serous cystadenoma (Figure 2a and 2b).