A 28-year-old man with Behçet’s disease presented with a 3-day history of 1 cup/day hemoptysis. He was diagnosed 2 years earlier with recurrent oral and genital ulcers, erythema nodosum, saccular pulmonary aneurysms, and lung biopsy showing necrotizing vasculitis, with a Behçet’s syndrome activity score of 14. His medications included prednisolone, azathioprine, and infliximab (after the hemoptysis began). Computed tomography showed 3 right lung aneurysms, measuring 21, 39, and 44 mm in diameter, and 2 left lung aneurysms, measuring 72 and 77 mm in diameter (Fig 1). Vascular involvement in Behçet’s disease can occur in up to 15% of cases, causing arteritis of both small and large arteries, most frequently of the pulmonary circulation. Pulmonary artery aneurysms also occur in combination with thrombophlebitis—a syndrome known by the eponym Hughes–Stovin—in the absence of criteria for a diagnosis of Behçet’s disease. The European League Against Rheumatism recommends immunosuppressive agents for major vessel disease in Behçet’s disease, and surgery is discouraged because of the high risk of complications and recurrence. The aneurysms were embolized with detachable coils (AZUR CX; Terumo, Shibuya City, Tokyo, Japan) and a cyanoacrylate glue (Glubran2; GEM, San Benedetto del Tronto AP, Italy)/Lipiodol (Guerbet, Villepinte, France) mixture in a 1:4 ratio (Figure 2, Figure 3, Figure 4 and Videos 1–8 [available online on the article’s Supplemental Material page at www.jvir.org]). In total, 25 ml of cyanoacrylate glue was used with 100 cc of Lipiodol (Guerbet), without immediate complications. The patient recovered well and was discharged 2 days later. He remained free of hemoptysis. Follow-up computed tomography 2.5 months after the treatment (Fig 5) demonstrated exclusion of all aneurysms, with no signs of perfusion. Figure 2(a) Sagittal maximum intensity projection of the left lung showing a giant aneurysm of the lower lobe, arising from a pulmonary artery branch. (b) Fluoroscopy image showing the aneurysm embolized with glue and Lipiodol (Guerbet) (1:4) only. View Large Image Figure Viewer Download Hi-res image Figure 3Fluoroscopy image showing the 2 left lung aneurysms embolized with a mixture of glue and Lipiodol (Guerbet) (1:4) and detachable coils (block arrow) and with glue and Lipiodol (Guerbet) only (thin arrow). View Large Image Figure Viewer Download Hi-res image Figure 4Fluoroscopy image showing the 3 right lung aneurysms embolized with detachable coils only (long block arrow), with a mixture of glue and Lipiodol (Guerbet) (1:4) and detachable coils (short block arrow), and with glue and Lipiodol (Guerbet) only (thin arrow). View Large Image Figure Viewer Download Hi-res image Figure 5Curved multiplanar reformation from computed tomography of the thorax showing 4 of the 5 embolized aneurysms 2.5 months after the treatment, with no signs of perfusion View Large Image Figure Viewer Download Hi-res image