Table 2.

Differential diagnosis table for ovarian vein thrombosis

	CT	Ultrasound	MRI	Angiography
Ovarian vein thrombosis	Central filling defect surrounded by dense contrast	Echogenic mass expanding vein, noncompressible, no flow	T1 focal hyperintense vein, T2 hyperintense, no flow void on spin echo sequences	Non-opacified vein, filling defect
Mixing artifact	Heterogeneous, low to intermediate density	Reverberation artifact, slow flow artifact, incorrect Doppler settings	Flow-related enhancement when vessel in plane with imaging slice	Poor injection