title: Retroperitoneal abscess and mycotic aortic aneurysm: unusual septic complications of central vascular line placement in premature infants.
abstract: OBJECTIVE
  To describe the sonographic appearance of unusual septic complications after central vascular line placement in premature infants.
  
  
  METHODS
  Two case reports are presented.
  
  
  RESULTS
  The first patient had a retroperitoneal abscess after percutaneous central venous catheter placement. The second patient had a ruptured mycotic aneurysm of the abdominal aorta after umbilical arterial catheter placement.
  
  
  CONCLUSIONS
  Retroperitoneal abscess and aortic aneurysm should be considered in patients with histories of long-standing catheters or line sepsis. Both of these complications are readily diagnosed on the basis of sonography.
authors.affiliation: Department of Radiology, University of Chicago, Illinois,  USA.
authors.forename: J E
authors.initials: JE
authors.lastname: Lim-Dunham
authors.forename: C N
authors.initials: CN
authors.lastname: Duncan
authors.forename: D K
authors.initials: DK
authors.lastname: Yousefzadeh
authors.forename: T
authors.initials: T
authors.lastname: Ben-Ami
mesh_terms: D000785:Aneurysm, Infected / Q000000981:diagnostic imaging* / Q000209:etiology; D001014:Aortic Aneurysm / Q000000981:diagnostic imaging* / Q000209:etiology; D002405:Catheterization, Central Venous / Q000009:adverse effects*; D002406:Catheterization, Peripheral / Q000009:adverse effects; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007235:Infant, Premature, Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D008297:Male; D016659:Psoas Abscess / Q000000981:diagnostic imaging* / Q000209:etiology; D012187:Retroperitoneal Space / Q000000981:diagnostic imaging; D013203:Staphylococcal Infections; D014463:Ultrasonography