title: Near-miss in focused lower-extremity ultrasound for deep venous thrombosis.
abstract: BACKGROUND
  Focused, proximal compression ultrasound (FPCUS) is a commonly used point-of-care study in the Emergency Department (ED). Pelvic vein deep venous thrombosis (DVT) is a rare presentation, and Emergency Physicians need to be aware of the limitations and pitfalls of FPCUS.
  
  
  OBJECTIVE
  A case of external iliac vein DVT diagnosed in the ED is presented, with a focus on subtle signs seen during FPCUS that led to the diagnosis and additional ultrasound techniques to aid in appropriate point-of-care diagnosis.
  
  
  METHODS
  We describe a patient who presented with lower-extremity pain and was subsequently diagnosed with external iliac DVT. A FPCUS study by Emergency Physicians was performed and demonstrated subtle findings that led to further investigation and appropriate diagnosis.
  
  
  CONCLUSIONS
  Emergency physicians using FPCUS in the evaluation of lower-extremity pain or swelling need to be aware of the pitfalls, limitations, and advanced techniques to avoid misdiagnosis while evaluating for DVT.
authors: Department of Emergency Medicine, North Shore University Hospital, Manhasset, New York 11030, USA.
authors: Robert M
authors: RM
authors: Bramante
authors: Christopher C
authors: CC
authors: Raio
mesh_terms: D000369:Aged, 80 and over; D005268:Femoral Vein / Q000000981:diagnostic imaging; D006801:Humans; D007084:Iliac Vein / Q000000981:diagnostic imaging; D008297:Male; D019095:Point-of-Care Systems / Q000592:standards*; D014463:Ultrasonography; D020246:Venous Thrombosis / Q000000981:diagnostic imaging*
keywords: DVT; Emergency Medicine; compression; point-of-care; ultrasound