Fig. 2From: Recurrent retroperitoneal abscess after biliary tract surgery in an elderly patient: a minimally invasive nonsurgical approach and its consequences: a case reportComputed tomographic images without contrast media. a Axial plane. b Sagittal plane. Images show a right inferior lumbar hernia (Petit hernia) through the inferior lumbar triangle between quadratus lumborum muscle, external oblique muscle, and the left iliac muscle, containing adipose tissue and the right kidneyBack to article page