PMC9260105_01
Evaluation of the abdominopelvic arteriovenous malformation (AVM) with color Doppler ultrasound and CT angiography. (A) The ultrasound revealed a pelvic mass with an abundant blood flow signal. (B) The axial view of CT angiography showed the nidus of AVM (yellow arrow) and dilated outflow veins (white arrows) (the aneurysm was measured as 72 x56 mm).
fcvm-09-916096-g0001.jpg
PMC9260105_01_fcvm-09-916096-g0001.jpg
F1
The ultrasound revealed a pelvic mass with an abundant blood flow signal (Figure 1A). CT angiography (CTA) showed the nidus of pelvic arteriovenous malformation (AVM) and aneurysmal-dilated vessel (measured 72 x 56 mm) (Figure 1B).
3D reconstruction of CT angiography of the abdominopelvic arteriovenous malformation (AVM). (A) Arterial phase of CT angiography showed the AVM had a single feeding artery originating from the splenic artery. (B) Venous phase of CT angiography showed the AVM had two draining veins into the superior mesenteric vein and then the portal vein.
fcvm-09-916096-g0002.jpg
PMC9260105_01_fcvm-09-916096-g0002.jpg
F2
The 3D reconstruction of CTA demonstrated that the AVM had a single feeding artery originating from the splenic artery and two draining veins into the superior mesenteric vein, and then, a portal vein (Figure 2).
Digital subtraction angiography (DSA) and resected vascular lesion of the abdominopelvic arteriovenous malformation (AVM). (A) DSA showed the feeding artery and AVM nidus. (B) DSA showed the AVM nidus and two draining veins. (C) DSA showed draining veins flowed into the superior mesenteric vein and then the portal vein. (D) the AVM lesion was surgically removed successfully.
fcvm-09-916096-g0003.jpg
PMC9260105_01_fcvm-09-916096-g0003.jpg
F3
Digital subtraction angiography (DSA) was used to further evaluate the AVM (Figures 3A-C). Considering the risk of aneurysm rupture and hemorrhage, the patient was treated with surgical resection of the AVM and ligation of the feeding artery and draining veins (Figure 3D).
One-month post-operative CT angiography of the patient. Arterial phase (A), Venous phase (B), and axial view (C) of the CT angiography showed elimination of the abdominopelvic AVM.
fcvm-09-916096-g0004.jpg
PMC9260105_01_fcvm-09-916096-g0004.jpg
F4
The 1-month follow-up CTA showed elimination of the abdominopelvic AVM (Figure 4) and the patient was doing well during the following 12 months.