Rare Causes of Abdominal Pain • Hereditary Angioneurotic Edema - Recurrent visceral that may by swelling of the extremities, genitals, face, lips, larynx or gastrointestinal tract • Familial Mediterranean Fever - Increased prevalence in the southern and eastern Mediterranean areas; pain often accompanied by serositis • Acute Porphyria - May involve symptoms from the gastrointestinal (GI) and cardiovascular system, as well as neuropsychiatric symptoms: often precipitated by medications, alcohol or other external factors • Median arcuate ligament syndrome - Pain may associated with postural changes, worsen during the post-prandial period and can be associated with mild gastric emptying delay • Superior mesenteric artery syndrome - Extremely lean persons pain. nausea and vomiting relieved when the patient is in the knee-to-chest position or in the prone (face down) position • Abdominal migraine - Mostly seen in children; intermittent and often associated with nausea and vomiting • Henoch-Schönlein purpura - Mostly seen in children; intermittent and typically presents with purpura of the lower extremities; ~50% abdominal pain • Abdominal cutaneous nerve entrapment - Positive Carnett's sign • Ehlers-Danlos Syndrome - Visceral pain accompanied by joint and musculoskeletal symptoms • Hernias - Past surgery to incisional hernias: clinical examination. but Spigelian hemias rnay difficult to identify • Radicular pain - History of back pain and radicular pain #Rare #Causes #Abdominal #Pain #differential #diagnosis
