Acute appendicitis in pregnancy with rupture into perinephric space
The ultrasound findings indicate bubbles of gas within the perinephric space - a highly unusual finding, particularly given that the kidney itself appears normal. The MRI helps to diagnose perforated acute appendicitis as the cause of the ultrasound findings and the clinical presentation. The appendix is dilated, thick-walled and contains appendicoliths. Examination in three planes enables the path of the appendix to be followed.