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→Finding the appendix: +Mimic
===Finding the appendix===
A high frequency probe is preferable in children. The external iliac vessels are helpful in initial orientation, as the appendix is often located in their vicinity. Look for a relatively small tubular structure. When finding such a structure, exclude mimics, mainly:*''Juxtaposing serosal layers '', may mimic a longitudinal section of an appendix, but will not turn circular when rotating the probe 90°.*''Blood vessels'', mainly external iliac and inferior epigastric vessels, will show pulsations in Doppler mode.
===Findings indicating appendicitis===
