Colon Volume by Computed Tomography and Scintigraphic Colonic Transit in Constipated Patients With or Without...

Area of Science:

• Gastroenterology
• Radiology
• Anatomy

Background:

• Redundant colon (dolichocolon) is an anatomical variant characterized by colon elongation.
• It is often associated with symptoms such as constipation, abdominal pain, and distention.
• Accurate diagnosis is crucial for understanding patient symptoms.

Purpose of the Study:

• To define the diagnostic criteria for redundant colon (dolichocolon).
• To outline the radiological methods used for diagnosis.
• To categorize the different types of colonic redundancy.

Main Methods:

• Diagnosis relies on radiological visualization of the non-dilated colon.
• Barium enema and abdominopelvic computed tomography (CT) are key diagnostic tools.
• Classification is based on three specific criteria related to colon loop displacement.

Main Results:

• Colonic redundancy is diagnosed based on three criteria: sigmoid loop position, transverse colon position, and redundant loops at flexures.
• Type 1 involves sigmoid loop displacement.
• Type 2 involves transverse colon displacement, and Type 3 involves redundant loops at hepatic or splenic flexures.
• In rare cases, dolichocolon can present with all three criteria.

Conclusions:

• Redundant colon (dolichocolon) is an anatomical variant diagnosed via imaging.
• Specific radiological criteria define and classify colonic redundancy.
• Understanding these criteria aids in diagnosing and managing associated gastrointestinal symptoms.