Case reports
Case oneA 24-year-old low-risk primigravida presented with severe acute right-sided colicky abdominal pain at 26 weeks ' gestation. A fi nding of bilateral hydronephrosis on ultrasound of the renal tracts suggested renal calculi, following which the patient underwent bilateral ureteric stenting. Symptoms persisted and an investigative laparotomy and emergency caesarean section (EMCS) were performed, with negative fi ndings. Subsequent computerised tomography (CT) scan of the abdomen and pelvis (CTAP) revealed a diagnosis of a right-sided ovarian vein thrombus (OVT). Th e patient was treated with therapeutic low-molecular weight heparin (LMWH) and subsequently warfarin, antibiotics and analgesia with the input of a haematologist. A transient thrombocytopenia and neutropenia developed within 3 days of treatment. Maternal testing for inherited thrombophilia and lupus anti-coagulant were negative. Follow-up CT imaging 4 months later revealed resolution of the OVT and warfarin was stopped. In a subsequent pregnancy the patient was commenced on prophylactic LMWH from booking. Figure 1. CT abdomen and pelvis axial image demonstrating right-sided ovarian vein thrombosis. J Obstet Gynaecol Downloaded from informahealthcare.com by University College Dublin on 05/19/15 For personal use only.