Arteriovenous malformation of the gallbladder: CT and angiographic findings.
We encountered a case of arteriovenous malformation (AVM) of the gallbladder in a patient with hepatocellular carcinoma (HCC). Contrast-enhanced computed tomography (CT) showed serpentine vessels around and within the gallbladder wall. Angiography showed dilated and tortuous cystic arteries, a racemose vascular network, and early-filling cystic veins. Transcatheter arterial embolization of two cystic arteries feeding the AVM was performed with platinum microcoils prior to transcatheter arterial chemoembolization for HCC to prevent embolic particles from flowing into these arteries. Follow-up contrast-enhanced CT showed blood flow in the gallbladder AVM, which appeared to be fed by the arterial collaterals.
Osada
Hisato
H
Department of Radiology, Saitama Medical Center, Saitama Medical School, 1981 Kamoda, Kawagoe 350-8550, Japan. osada@saitama-med.ac.jp
Honda
Norinari
N
Takahashi
Takeo
T
Oku
Shinya
S
Watanabe
Wataru
W
Okada
Takemichi
T
Ohno
Hitoshi
H
Hondo
Mikito
M
Nishimura
Keiichiro
K
D000368:Aged; D000792:Angiography; D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000628:therapy; D006528:Carcinoma, Hepatocellular / Q000150:complications; D016461:Chemoembolization, Therapeutic; D003097:Collateral Circulation; D003287:Contrast Media; D005260:Female; D005704:Gallbladder / Q000098:blood supply*; D006801:Humans; D008113:Liver Neoplasms / Q000150:complications; D014057:Tomography, X-Ray Computed
D003287:Contrast Media