Four patients are presented who were thought to have sustained viscera
l injury following blunt abdominal trauma. However, CT demonstrated ab
dominal wall haematomata and allowed nonoperative management. Similari
ty between the clinical findings in visceral injury and abdominal wall
haematoma ran lend to diagnostic difficulty. The cases illustrate the
need to consider abdominal wall haematoma as a possible diagnosis in
patients with blunt abdominal trauma. The place of CT in making this d
iagnosis is highlighted.