Ovarian vein thrombosis
Dull abdominal pain.
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The uterus shows a few punctate calcifications, likely vascular. Intrauterine device in situ. There are pelvic varices. The right gonadal vein is slightly dilated with a central low-attenuation filling defect which extends cranially almost to its junction with the IVC. The left gonadal vein is patent.
While this case is certainly not mind-blowing, it is a very nice example of thrombosis of the right gonadal/ovarian vein: a dilated vein with a central low-attenuation filling defect. This likely accounted for the patient's presentation with dull abdominal pain. It would have been possible to miss this finding if the radiologists had not seen a few such cases in the past. Much of being a successful radiologist is knowing the imaging appearance of the basic anatomy you learned in medical school: the right gonadal vein goes to the IVC and the left gonadal vein to the renal vein.