Generalized Pain: Intestinal infarction, peritonitis, obstruction, diabetic ketoacidosis, sickle crisis, acute porphyria, penetrating posterior duodenal ulcer, psychogenic pain.
Right Upper Quadrant: Cholecystitis, cholangitis, hepatitis, gastritis, pancreatitis, hepatic metastases, gonococcal perihepatitis (Fitz-Hugh-Curtis syndrome), retrocecal appendicitis, pneumonia, peptic ulcer.
Epigastrium: Gastritis, peptic ulcer, gastroesophageal reflux disease, esophagitis, gastroenteritis, pancreatitis, perforated viscus, intestinal obstruction, ileus, myocar-dial infarction, aortic aneurysm.
Left Upper Quadrant: Peptic ulcer, gastritis, esophagitis, gastroesophageal reflux, pancreatitis, myocardial ischemia, pneumonia, splenic infarction, pulmonary embolus.
Left Lower Quadrant: Diverticulitis, intestinal obstruction, colitis, strangulated hernia, inflammatory bowel disease, gastroenteritis, pyelonephritis, nephrolithiasis, mesenteric lymphadenitis, mesenteric thrombosis, aortic aneurysm, volvulus, intussusception, sickle crisis, salpingitis, ovarian cyst, ectopic pregnancy, endometriosis, testicular torsion, psychogenic pain.
Right Lower Quadrant: Appendicitis, diverticulitis (redundant sigmoid) salpingitis, endometritis, endometriosis, intussusception, ectopic pregnancy, hemorrhage or rupture of ovarian cyst, renal calculus.
Hypogastric/Pelvic: Cystitis, salpingitis, ectopic pregnancy, diverticulitis, strangulated hernia, endometriosis, appendicitis, ovarian cyst torsion; bladder distension, nephrolithiasis, prostatitis, malignancy.
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Gastroesophageal reflux disease is the medical term for what we know as acid reflux. Acid reflux occurs when the stomach releases its liquid back into the esophagus, causing inflammation and damage to the esophageal lining. The regurgitated acid most often consists of a few compoundsbr acid, bile, and pepsin.