Snapshot A 25-year-old man presents to the emergency room for pain in his right lower quadrant. He was found to have perforated appendicitis and was immediately taken to the operating room for emergent laparoscopic appendectomy. Due to the complexity of the case, the operation was converted to an open appendectomy. Post-operatively, he was put on a 7-day course of clindamycin and returned home. Two days later, he returned to the emergency room for diffuse abdominal pain. A computed tomography (CT) of his abdomen shows a fluid collection at the site of the appendix. Introduction Classification login to view 4 more bullets Epidemiology login to view 8 more bullets Pathogenesis login to view 3 more bullets Presentation CNS infections login to view 1 more bullet Head and neck infections login to view 3 more bullets Aspiration pneumonia Empyema Intra-abdominal infections login to view 2 more bullets Wound infections Imaging Computed tomography (CT) login to view 4 more bullets Studies Labs login to view 1 more bullet Making the diagnosis login to view 1 more bullet Differential Necrotizing fasciitis login to view 3 more bullets Treatment Management approach login to view 2 more bullets Medical login to view 8 more bullets Operative login to view 3 more bullets Complications Death Contiguous spread of infection