Table 1.

Intraoperative appearances of acute appendicitis [12]

Non-complicated Acute Appendicitis

Grade 0—Normal looking appendix (Endoappendicitis/Periappendicitis)

Grade 1—Inflamed appendix (Hyperemia, oedema ± fibrin without or little pericolic fluid)

Complicated Acute Appendicitis

Grade 2—Necrosis  Grade 2A—Segmental necrosis (without or little pericolic fluid)  Grade 2B—Base necrosis (without or little pericolic fluid)

Grade 3—Inflammatory Tumour  Grade 3A—Flegmom  Grade 3B—Abscess < 5 cm without peritoneal free air  Grade 3C—Abscess > 5 cm without peritoneal free air

Grade 4—Perforated—diffuse peritonitis with or without peritoneal free air