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182 A N A L E S R A N M R E V I S T A F U N D A D A E N 1 8 7 9 AN UNUSUAL CASE OF ACUTE ABDOMEN Anca Oprisan, et al. An RANM. 2021;138(02): 180 - 182 MR imaging is appropriate in the diagnosis and follow-up of the ovarian vein thrombophlebitis. MR have better depicts tissue contrast without IV contrast material comparing with CT. The MR due to its sensitivity to blood flow and to the paramagnetic effects of iron can differentiate flowing blood, acute thrombus and subacute thrombus (4). The treatment for the ovarian vein thrombophle- bitis will consist in a combination of anticoagulation therapy for a duration of 3-6 months and antibiotics (5). If not treated about 50% of patients will present septic pulmonary embolisms or other complications like acute obstruction of a ureter, ovarian infarction (3). In case that anticoagulation is contraindicated, because of the high risk of spreading the thrombosis it´s recommended placing an inferior vein cava filter(6). Given the early diagnosis of our patient, she received timely treatment, with clinical improve- ment and resolution of the thrombi in a follow-up CT performed 3 months later. 1. Bilgin M, Sevket O, Yildiz S, Sharifov R, Kocakoc E. Imaging of postpartum ovarian vein thrombo- sis. Case Rep Obstet Gynecol. 2012;2012:134603. 2. Dessole S, Capobianco G, Arru A, Demurtas P, Ambrosini G. Postpartum ovarian vein thrombo- sis: an unpredictable event: two case reports and review of the literature. Arch Gynecol Obstet. 2003;267(4):242-246. 3. Virmani V, Kaza R, Sadaf A, Fasih N, Fraser-Hill M. Ultrasound, computed tomography, and mag- netic resonance imaging of ovarian vein thrombo- sis in obstetrical and nonobstetrical patients. Can Assoc Radiol J. 2012;63(2):109-118. 4. Bannow BTS, Skeith L. Diagnosis and manage- ment of postpartum ovarian vein thrombosis. Hematol Am Soc Hematol Educ Progr. 2017; 2017(1):168-171. 5. Kominiarek MA, Hibbard JU. Postpartum ovarian vein thrombosis: an update. Obstet Gynecol Surv. 2006;61(5):337-342. 6. Lenz CJ, Wysokinski WE, Henkin S, Cohoon KP, Ca- sanegra A, Simmons BS, et al. Ovarian Vein Throm- bosis. Obstet Gynecol. 2017;130(5):1127-1135. Figure 2a. Coronal contrast-enhanced CT image shows the left ovarian vein (arrow) from the uterus up to the renal vein on the left. There is associated thickening and enhan- cement of the walls of the ovarian and uterine veins. A gravid uterus is observed (star). Figure 2b. Coronal contrast-enhanced CT image shows the presence of hypodense material occupying and distending right ovarian vein from the uterus up to the inferior vena cava to the right. There is associated thickening and en- hancement of the walls of the ovarian and uterine veins. A gravid uterus is observed (star). REFERENCES CONFLICT OF INTEREST STATEMENT The authors of this article declare that they have no conflict of interest with respect to what is expressed in this work. If you want to quote our article:: Oprisan A, Barreda Solana M. An unusual case of acute abdomen: bilateral ovarian veins thrombophlebitis. An RANM. 2021;138(02): 180– 182. DOI: 10.32440/ar.2021.138.02. cc02