Appendicular abscess CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Aditya Ganti M.B.B.S. [2]

Overview

CT scans are the diagnostic test of choice for detecting appendicular abscess. They can provide critical information regarding the size of the abscess. CT scans are preferred over ultrasounds for the detection of abscess, but is contraindicated in children due to risk of exposure.

CT

• CT is significantly more sensitive than ultrasound for the diagnosis of appendicitis.
• Appendiceal wall thickening (wall ≥ 3mm) with hyperenhancement and mural stratification can be seen
• Fluid collection is seen in the appendicular region sometimes mixed with air.

CT of abdomen showing an abscess in the retrocaecal location with an adjacent appendicolith with ascending colon being displaced anteriorly.