Imaging of acute appendicitis and it’s complications
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Transcript of Imaging of acute appendicitis and it’s complications
Imaging of acute appendicitis and it’s complications
Imaging modalities
• Plain films• US• CT
Plain films
• Calcified appendicolith• Focal ileus
US diagnosis of appendicitis
• Compression US technique.1. An appendix diameter of > 6 mm 2. Wall thickness of > 3 mm3. Dilated non-compressible fluid filled lumen
CT
• Technique:1.CT abd/pelvis without any contrast2.Oral contrast3.IV contrast4.Rectal contrast
CT Findings in Acute Appendicitis
• Normal appendix• Appendicolith (Presence of appendicolith and abdominal pain has
a sensitivity of 90% for acute appendicitis)
• Enlarged appendix, 7-10 mm (Previously 6 mm)
• Peri-appendicular inflammation-linear streaky densities in peri-appendicular fat
• Abscess
Excess abdominal fat is a good thing!!
Mildly dilated appendix with fluid filled lumen
Enlarged and inflamed appendix with wall thickening and peri-appendiceal inflammation
Appendicitis and pelvic abscess.
Per-cutaneous drainage of appendiceal abscess