Localized Acute Abdominal Pain(<72 hours) - Differential Diagnostic Algorithm Look for surgical abdomen Upper quadrant: R/O cardiac, pulmonary, renal, musculoskeletal causes Lower quadrant: R/O genitourinary causes Upper Quadrant - Peritoneal • Cholecystitis • Perforated ulcer • Pancreatitis (1,2) • Splenic rupture Lower Quadrant - Non-Peritoneal • Urinary tract infection(upper, lower) • Ureteric colic • Irritable bowel syndrome • Psoas abscess Right Upper Quadrant - Non-Peritoneal • Biliary Colic • Bowel Obstruction • Pyelonephritis • Hepatitis • Hepatic Abscess Epigastric - Non-Peritoneal • Peptic ulcer disease • Biliary Colic • Gastritis • Esophageal rupture Left Upper Quadrant - Non-Peritoneal • Splenic infarct • Splenic abscess • Splenic rupture Peritoneal - Bowel • Appendicitis • Diverticulitis • Incarcerated hernia Pelvic / Adrenal - Bowel • Ectopic pregnancy • Ovarian torsion • Pelvic inflammatory disease • Salpingitis #Localized #Acute #Abdominal #Pain #Differential #Diagnosis #Algorithm
