Open AccessA case of venous aneurysm of a splenorenal shunt
Author(s) -
Hiroki Yonezawa,
Atsushi Jogo,
Akira Yamamoto,
Takehito Nota,
Kazuki Murai,
Satoyuki Ogawa,
Mariko Nakano,
Ken Kageyama,
Shinichi Hamamoto,
Etsuji Sohgawa,
Masao Hamuro,
Toshio Kaminou,
Yukio Miki
Publication year - 2021
Publication title -
bjr case reports
Language(s) - English
Resource type - Journals
ISSN - 2055-7159
DOI - 10.1259/bjrcr.20210011
Subject(s) - medicine , aneurysm , hyperammonemia , shunt (medical) , radiology , portal venous system , balloon , venous thrombosis , thrombosis , cirrhosis , surgery , portal hypertension
A 66-year-old man presented with liver cirrhosis due to non-alcoholic steatohepatitis and hyperammonemia. Contrast-enhanced CT showed a dilated and tortuous splenorenal shunt and a large venous aneurysm in the shunt. The venous aneurysm showed gradual enlargement over 10 years and worsening hyperammonemia, so balloon-occluded retrograde transvenous obliteration was performed. Under balloon occlusion, 5% ethanolamine oleate was injected from a microcatheter into the venous aneurysm, which was subsequently embolized with microcoils. Contrast-enhanced CT after the procedure showed complete thrombosis of the venous aneurysm. 10 months later, the venous aneurysm reduced in size, and hyperammonemia had improved.