Level 1: Abdominal Pain – Initial History: Expert Panel DDX

How does your differential compare with the experts?

What related symptoms and risk factors would help you refine your differential diagnosis?

Experts’ DDX:

1. Infectious
   1. Gastroenteritis – viral
   2. Gastroenteritis – bacterial
   3. Hepatitis
   4. Cholecystitis
2. Inflammatory
   1. Peptic ulcer disease (PUD)/gastritis
   2. Pancreatitis
3. Myocardial infarction (MI)
4. Abdominal aortic aneurysm (AAA)
5. Pregnancy
   1. Ectopic
6. Emergencies
   1. Appendicitis
   2. Volvulus
   3. Small bowel obstruction (SBO)
   4. Perforated ulcer
   5. Ovarian torsion
   6. Tubo-ovarian abscess
   7. Kidney stone
   8. Pyelonephritis
   9. Urinary tract infection (UTI)
   10. Splenic infarct
   11. Mesenteric ischemia
   12. Portal vein thrombosis
7. Pericarditis
8. Pneumonia
9. Diabetic ketoacidosis (DKA)
10. Porphyria
11. Hemolysis
12. Sickle cell crisis
13. Medication induced