case_images: PMC7398405_01
case_images: Magnetic resonance imaging shows an aneurysm of the left internal carotid artery. a Enhanced scanning shows mild uneven enhancement and heterogeneous signal intensities representing variable stages of thrombosis. b T2 magnetic resonance imaging shows aneurysm is low signal and blood vessel wall calcification
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case_images: Fig1
case_images: There was a circular liquid signal shadow spotted under the inner wall of the left maxillary sinus, the diameter of which was about 16 mm (Fig. 1).
case_images: The left internal and external carotid angiography. a Balloon occlusion test showed patency of anterior communicating artery. b-c Digital subtraction angiography anteroposterior and lateral views display the separate inflow and outflow channels of the giant serpentine aneurysm; Weakening of contrast medium filling at the distal end of the channel. d Left external carotid artery angiography suggests intramaxillary aneurysms
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case_images: Fig2
case_images: Further cerebral angiography indicated that the left internal carotid artery GSA was about 48.61 mm x 23.40 mm in size, 4.65 mm in diameter of proximal vessels, and 3.16 mm in diameter of distal vessels (Fig. 2).  
case_images: Three-dimensional vascular reconstruction to show the morphology of stents. a The overlap of the middle part of the stents is clearly visible. b The end of the bracket is stretched and anchored. c Specific structure of stents and GSA
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case_images: Fig3
case_images: Tubridge and LEO stent (Fig. 3). Then, the guide catheter to the external carotid artery was replaced, liquid glue (50%, 1.5 ml) was injected, and three coils were released through the microcatheter.
case_images: Postoperative follow-up of CT and DSA. a Left internal carotid artery angiography shows the redirection of the aneurysm inflow jet. b External carotid arteriography shows complete occlusion of MA. c Postoperative reexamination of CT. d DSA reveals the variation of flow direction in the stents. e-f 3D-DSA display the transform volume and morphology of GSA
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case_images: Fig4
case_images: Three-dimensional revascularization indicated a significant reduction in aneurysm volume, and the mass effect was reduced as shown by CT scan (Fig. 4).