Accessory Appendicular Artery is Absent in Majority of Cases

The systematic review of 604 cases revealed that the accessory appendicular artery (AAA) is absent in most cases (83.6%). When present, it commonly originates from the posterior cecal artery (12.4%), followed by the descending branch of the ileocolic artery (2%), and the ileal branch of the ileocolic artery (0.7%). Instances of origin from the anterior cecal, common cecal, or the ileocolic trunk were even more infrequent. The study introduces a new simplified classification system and highlights the need for surgeons to consider the presence and origin of the AAA during appendectomy procedures.