title: Rectus sheath haematoma or leaking aortic aneurysm - a diagnostic challenge: a case report.
abstract: BACKGROUND
  A rectus sheath haematoma is a rare condition that arises from the accumulation of blood within the rectus sheath from either muscular tear or rupture of the epigastric vessels. It is a known complication of either blunt abdominal trauma, anticoagulation therapy or the repetitive contraction of the rectus muscle such as paroxysms of coughing. It remains an uncommon and elusive entity and is often clinically misdiagnosed.
  
  
  METHODS
  An 80-year-old British man with a known aortic aneurysm was admitted with sudden onset of right iliac fossa pain. The patient was hemodynamically stable and underwent a computed tomography scan which revealed an intact aorta and an acute rectus sheath hematoma.
  
  
  CONCLUSIONS
  To the best of our knowledge, no case has previously been reported involving the diagnostic challenge of a rectus sheath hematoma in a patient with a known aortic aneurysm. Here we discuss the symptoms and signs of a rectus sheath hematoma, as well as the radiological modalities that could be utilized to reach the diagnosis.
authors: School of Graduate Medicine and Health, University of Nottingham, Derby, DE22 3DT, UK.
authors: Aidan G
authors: AG
authors: Shaw
authors: Simon
authors: S
authors: Fleming
authors: Polly
authors: P
authors: Drew
authors: Jonathan N
authors: JN
authors: Lund
authors: Manjeet
authors: M
authors: Riyat