title: Case report of hepatic artery dissection secondary to hepatic artery pseudoaneurysm after living donor liver transplantation.
abstract: BACKGROUND
  Hepatic artery pseudoaneurysm (HAP) and Hepatic artery dissection are rare vascular complications after living donor liver transplantation (LDLT), which may lead to graft loss and death of the recipients. Conventional gray-scale and Doppler ultrasound, as well as contrast-enhanced ultrasound (CEUS), play important roles in identifying vascular complications in the early postoperative period and during follow-up. We report a case of hepatic artery dissection secondary to HAP after LDLT, which was diagnosed and followed for one year by ultrasound. To the best of our knowledge, few studies have reported similar cases after liver transplantation in the English literature.
  
  
  METHODS
  A 43-year-old man underwent right-lobe LDLT for treatment of a severe acute hepatitis B infection and was followed up with ultrasound examinations for one year. Conventional gray-scale and Doppler ultrasound combined with contrast-enhanced ultrasound (CEUS) accurately revealed the occurrence of HA dissection secondary to HAP and accompanied by thrombosis and collateral circulation, as well as secondary biliary complications, which provided a prompt diagnosis and guidance for the treatment.
  
  
  CONCLUSIONS
  Our case suggests that ultrasound can help detect hepatic artery pseudoaneurysm and dissection, as well as secondary biliary lesions after LDLT in an accurate and timely manner and provide useful information for the treatment chosen. CEUS shows potential as an important complementary technique to gray-scale and Doppler ultrasound.
authors.affiliation: Department of Ultrasound, West China Hospital of Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan Province, 610041, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Ma
authors.affiliation: Department of liver and Vascular Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China.
authors.forename: Kefei
authors.initials: K
authors.lastname: Chen
authors.affiliation: Department of Ultrasound, West China Hospital of Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan Province, 610041, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Lu
authors.affiliation: Department of Ultrasound, West China Hospital of Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan Province, 610041, China.
authors.forename: Wenwu
authors.initials: W
authors.lastname: Ling
authors.affiliation: Department of Ultrasound, West China Hospital of Sichuan University, 37 Guoxue Lane, Chengdu, Sichuan Province, 610041, China. luoyand@hotmail.com.
authors.forename: Yan
authors.initials: Y
authors.lastname: Luo
mesh_terms: D000328:Adult; D000784:Aortic Dissection / Q000000981:diagnostic imaging* / Q000628:therapy; D017541:Aneurysm, False / Q000000981:diagnostic imaging* / Q000628:therapy; D000792:Angiography; D004621:Embolization, Therapeutic / Q000379:methods; D006499:Hepatic Artery / Q000000981:diagnostic imaging* / Q000601:surgery; D006801:Humans; D016031:Liver Transplantation; D019520:Living Donors; D008297:Male; D011183:Postoperative Complications / Q000000981:diagnostic imaging* / Q000628:therapy; D013927:Thrombosis / Q000000981:diagnostic imaging* / Q000628:therapy; D018608:Ultrasonography, Doppler
keywords: Contrast-enhanced ultrasound; Dissection; Hepatic artery pseudoaneurysm; Living-donor liver transplantation; Ultrasound