ABDOMEN

• ASCITES(Baglike)

  RA: general abdominal haziness
• PNEUMOPERITONEUM

  R.A: thin, “crest-shaped” radiolucency under dome of the R. Hemidiaphragm on erect
• DYNAMIC OR MECHANICAL BOWEL OBSTRUCTION

  R.A : “circular staircase” or herringbone pattern”
• Cronh’s disease

  RA: distended loops of air-filled small intestine (string like appearance)
• Intussusception

  RA: “coiled spring” appearance
• Volvulus

  RA: large amount of air in sigmoid with tapered narrowing at the site of volvulus
• Adynamic ileus

  RA: large amount of air in entire dilated small and large intestine with air-fluid levels
• ULCERATIVE COLITIS

  RA: deep air-filled mucosal protrusion of colon wall
• LEGG-CALVE-PERTHES DISEASE

  R.A: flattened femoral head that later can appear fragmented