title: US-guided percutaneous laser ablation of refractory metastatic retroperitoneal lesions: A care-compliant case report.
abstract: BACKGROUND
  Retroperitoneal metastatic lymph node is rare but severe, which has important structures like the gastrointestinal tract and large blood vessels around and may challenge excision, inducing serious complications like hemorrhage, intestinal adhesion, and even death after injury.
  
  
  METHODS
  We described the case of a 60-year-old man with a history of right liver resection in 2010, pulmonary wedge resection in 2012, and transarterial chemoembolization twice in 2014, in which the postoperative pathology suggested the mixed liver cancer, and poorly differentiated lung cancer from liver metastasis.
  
  
  METHODS
  Preoperative magnetic resonance (MR) imaging scan showed a refractory retroperitoneal metastatic lymph node.
  
  
  METHODS
  Then this patient repeatedly received 4 ablations with US-guided laser ablation within a month.
  
  
  RESULTS
  After 4 ablations due to residual tumor, MR, and CT images of 5-month follow-up showed the partial response. No obvious side effects were discovered in this case during these procedures.
  
  
  CONCLUSIONS
  This suggested US-guided laser ablation appears to be a useful technique for retroperitoneal metastatic lymph node with poor general condition or those refusing surgical therapy.
authors.affiliation: State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Department of Ultrasound Medicine, the First Affiliated Hospital, Zhejiang University School of Medicine Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, Hangzhou, China.
authors.forename: Guo
authors.initials: G
authors.lastname: Tian
authors.forename: Tian'an
authors.initials: T
authors.lastname: Jiang
mesh_terms: D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D008113:Liver Neoplasms / Q000473:pathology* / Q000601:surgery; D008175:Lung Neoplasms / Q000556:secondary / Q000601:surgery; D008198:Lymph Nodes / Q000473:pathology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000556:secondary / Q000628:therapy*; D012187:Retroperitoneal Space; D016896:Treatment Outcome; D018084:Ultrasonography, Interventional / Q000379:methods*