24 Intestinal Disorders
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Appendicitis
- rebound tenderness: pressing and letting go
- perforation of abdomen viscus: peritonitis and then rigid abdomen and death
Diverticulum
- rebound tenderness like appendicitis
- occult blood: can't see with eyes but present
- inflammed diverticulum on CT
- inflammation narrow lumen
Adhesion
- C sections, appendectomy
- most commonly cause SBO
- intestines contract, resisted by adhesions: abdominal/pelvic pain
Intussusception
Volvulus
Bowel Obstruction
Hirschsprung
- transition zone: dilated to small
- dilated: normal
- narrow: missing ganglion. No peristalsis
Ileus
Ogilvie
- so sedentary life style that bowel become sedentary
IBS
Necrotizing Enterocolitis
- prematurity: immature mucosal defense
Angiodysplasia
- older people
- lower GI bleeding, aberant blood vessel (right) on colonoscopy
Osler-Weber-Rendu
- multiple dilated blood vessels that resemble angiodysplasia
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