Mucinous borderline ovarian tumour with torsion and micro-invasion and associated with high serum level of carbohydrate antigen 19-9: a case report Abstract

Daksha BHOBE1, Andrew LANG2, Chris WARREN2, Ayman HASSADIA1
1 Department of Obstetrics and Gynaecology, Doncaster Royal Infirmary, Yorkshire
2 Department of Histopathology, Royal Hallamshire Hospital, South Yorkshire

Carbohydrate antigen 19-9 (CA19-9) is a tumour marker elevated in many gastrointestinal malignancies as well as in mucinous tumours of ovary, mature cystic teratomas and various other benign lesions. We present a case of mucinous borderline ovarian tumour with multifocal micro-invasion and torsion and associated with very high levels of serum CA19-9 in a 41-year-old woman. This report highlights that tumour markers and radiological findings may not be accurate in diagnosing the histological sub-type of ovarian tumour.
Hong Kong J Gynaecol Obstet Midwifery 2021; 21(2):86–89
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