Abdominal Causes |
Gastrointestinal |
Appendiceal neoplasm
|
Gastroenteritis (Salmonella, Yersinia, Campylobacter)
|
Mesenteric adenitis
|
Omental torsion
|
Constipation
|
Perforated ulcer
|
Intussusception
|
Small bowel obstruction
|
Crohn's disease
|
Meckel diverticulitis
|
Cecal diverticulitis
|
Typhlitis
|
Pancreatitis
|
Gynecological
|
Ectopic pregnancy
|
Pelvic inflammatory disease
|
Ruptured ovarian follicle or cyst (Mittelschmerz)
|
Ovarian torsion
|
Obstetrical |
Placental abruption |
Uterine rupture |
Labor |
Severe preeclampsia and HELLP syndrome (midline or right upper quadrant pain) |
Intraamniotic infection |
Round ligament pain |
Genitourinary
|
Testicular torsion
|
Nephritis
|
Urinary tract infection
|
Renal colic (stone, UPJ obstruction)
|
Other
|
Sickle cell crisis
|
Mesenteric adenitis
|
Primary peritonitis
|
Extra-Abdominal Causes
|
Pneumonia |
Hemolytic uremic syndromes |
Diabetic ketoacidosis |
Henoch Schoenlein purpura |
Streptococcal pharyngitis |