Increased prevertebral space in infants or children
The sigmoid colon (or pelvic colon) is the part of the large intestine that is closest to the rectum and anus. It forms a loop that averages about 35–40 centimetres (14–16 in) in length. [Source: Wikipedia ]
Synonyms
Increased retropharyngeal space in infants or children
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Common
Uncommon