DOI: 10.36347/sasjs.2024.v10i06.019

Pages: 734-737

The incomplete common mesentery corresponds to a cessation of the 180° rotation of the primitive intestinal loop. This situation is rarely diagnosed in adult and is at very high risk of small bowel volvulus and mesenteric infarction. The occurrence of acute appendicitis in such a malformation, which is in a subhepatic position, makes its clinical diagnosis difficult and can be a source of diagnostic and therapeutic delay. Radiological imaging, in particular CT scanning, coupled with a good knowledge of the different anatomical variations of the appendix and the intestine, plays a major role in the diagnosis of complicated or ectopic acute appendicitis. It allows a precise anatomical and lesion diagnosis and guides the surgical approach. Laparoscopy, if available in the emergency room, in addition to its therapeutic interest allowing the performance of the appendectomy and the treatment of possible complications through a minimally invasive approach, it retains an important diagnostic interest in case of doubt, allowing good exploration of the entire peritoneal cavity. In this paper, we report the case of a young patient admitted for acute abdominal pain in the right hypochondrium whose investigations concluded with acute subhepatic appendicitis on an incomplete common mesentery.