Abdominal aortic aneurysm
Aortocaval fistula
Acute gastroenteritis
Aortoenteric fisulta
Appendicitis (early)
Bowel obstruction
Large bowel obstruction
Ogilvie's syndrome
Small bowel obstruction
Malignant bowel obstruction
Bowel perforation
Gastroparesis
Diabetic ketoacidosis
Hernia
Inflammatory bowel disease
Mesenteric ischemia
Mesenteric vein thrombosis
Pancreatitis
Peritonitis
Sickle cell crisis
Spontaneous bacterial peritonitis
Volvulus
Aortocaval fistula
Large bowel obstruction
Ogilvie's syndrome
Small bowel obstruction
Malignant bowel obstruction
Ogilvie's syndrome
Mesenteric vein thrombosis
MI
Aortic Dissection
PNA
PE
Testicular Torsion
Herpes Zoster
Muscle spasm
Spinal pathology
Strep Pharyngitis (peds)
Mononucleosis
DKA
ETOH Ketoacidosis
Uremia
Sickle Cell Crisis
SLE
Vasculitis
Glaucoma
Hyperthyroidism
Methanol Poisoning
Heavy Metal toxicity
Addison's disease<unk> 
Acute intermittent<unk> 
Paroxysmal nocturnal hemoglobinuria
Black widow spider bite
Acute intermittent<unk>
Porphyria
Abdominal aortic aneurysm
Scurvy
Aortocaval fistula
Rickets
Acute gastroenteritis
Pruritus ani
Aortoenteric fisulta