ABSITE: Appendix questions and answers with solutions 2025

Presentation of appendicitis with retrocecal appendix - ANSWER Right flank pain
O O O O O O O O O O




Appendix blood supply - ANSWER Appendiceal artery, branches from ileocolic
O O O O O O O O O




What is most common location for perforation of appendix? Why? -
O O O O O O O O O O



ANSWER Antimesenteric border of middle third due to watershed area
O O O O O O O O O O




What percentage of patients with appendicitis have leukocytosis? What does WBC > 20 k sugges
O O O O O O O O O O O O O O



t? - ANSWER 90% have WBC > 10,000. > 20,000: perforation.
O O O O O O O O O O




What symptom of appendicitis usually presents first? -
O O O O O O O



ANSWER anorexia, then pain, then nausea.
O O O O O O




Signs of appendicitis:
O O O




Dunphy:

Rovsing:

Obturator:

Iliopsoas: - ANSWER Dunphy: Pain with coughing
O O O O O O




Rovsing: LLQ palpation causes RLQ pain
O O O O O




Obturator: Pain on internal hip rotation
O O O O O




Iliopsoas: Pain on R hip extension
O O O O O




What CT findings suggest appendicitis? - ANSWER Appendiceal diameter > 6 mm
O O O O O O O O O O O




RLQ fat stranding
O O




Lack of appendiceal filling with contrast
O O O O O