[Accessory spleen torsion. Clinical picture, sonographic diagnosis and differential diagnosis].

The torsion and infarction of an accessory spleen must be considered as a rare cause of acute abdominal pain in childhood. It can be accompanied by acute diffuse or localised abdominal pain and it could also appear to be an acute appendicitis or an intussusception. The ultrasound examination helps to narrow down the possible differential diagnoses.