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[Role of embolization in renal angiomyolipomas]. 2006

C Dabbeche, and M Chaker, and R Chemali, and V Perot, and L El Hajj, and J M Ferriere, and Ph Ballanger, and V Chabbert, and A Cimpean, and P Otal, and E Huyghe, and N Grenier, and F Joffre
Service de Radiologie, CHU Rangueil, 1 avenue J Poulhes, TSA 50032, 31059 Toulouse Cedex 9.

OBJECTIVE The purpose of this study is to present the role of embolization in the treatment of renal angiomyolipoma (AML) in cases of hemorrhage and to prevent bleeding. METHODS Over a period of 10 years, 35 AMLs in 34 patients, recruited in two medical centers, were treated with embolization: 16/35 AML were treated urgently to stop bleeding, and 19/35 AML had preventive embolization. Six patients were completely asymptomatic and 13 had a history of previous hematoma or flank pain. Catheterization was highly selective in all cases (coaxial microcatheter in 19 cases), and for embolization we used nonresorbable microparticles, coils, and alcohol. RESULTS When patients presented with acute bleeding, embolization was efficient in 80% of cases; another embolization was necessary in two cases, and surgery in two others. In six of these cases, surgery was planned and done at a later date. When treatment was preventive, one embolization was necessary in 17 cases, and two embolizations per case were necessary in the other two. Over a period of 18 months of follow-up, we observed a 28% decrease in tumor volume; four patients were treated by surgery at a later date. CONCLUSIONS Embolization is the technique of choice to treat a bleeding AML urgently. When preventive treatment is considered, in symptomatic or asymptomatic AML, embolization can be an alternative for surgery, but more data is needed to specify its proper place in the management of these tumors.

UI MeSH Term Description Entries
D007680 Kidney Neoplasms Tumors or cancers of the KIDNEY. Cancer of Kidney,Kidney Cancer,Renal Cancer,Cancer of the Kidney,Neoplasms, Kidney,Renal Neoplasms,Cancer, Kidney,Cancer, Renal,Cancers, Kidney,Cancers, Renal,Kidney Cancers,Kidney Neoplasm,Neoplasm, Kidney,Neoplasm, Renal,Neoplasms, Renal,Renal Cancers,Renal Neoplasm
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D004621 Embolization, Therapeutic A method of hemostasis utilizing various agents such as Gelfoam, silastic, metal, glass, or plastic pellets, autologous clot, fat, and muscle as emboli. It has been used in the treatment of spinal cord and INTRACRANIAL ARTERIOVENOUS MALFORMATIONS, renal arteriovenous fistulas, gastrointestinal bleeding, epistaxis, hypersplenism, certain highly vascular tumors, traumatic rupture of blood vessels, and control of operative hemorrhage. Embolotherapy,Therapeutic Embolization,Embolizations, Therapeutic,Embolotherapies,Therapeutic Embolizations
D005260 Female Females
D006470 Hemorrhage Bleeding or escape of blood from a vessel. Bleeding,Hemorrhages
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D018207 Angiomyolipoma A benign tumor containing vascular, adipose, and muscle elements. It occurs most often in the kidney with smooth muscle elements (angiolipoleiomyoma) in association with tuberous sclerosis. (Dorland, 27th ed) Angiomyolipomas

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