US assessment in patients with CD typically reveals stiff and thickened bowel walls variably associated with an alteration of normal peristaltic activity in the small bowel as well as the absence of colonic haustral
markings help to differentiate it from other causes of pneumoperitoneum.
Of course, each colonoscopy does not require 6 minutes to draw the device because the colon differs in length and in the conditions of good preparation of the column and non-linear haustral
markers can be done in high quality and if the time of drawing the device is less than six minutes .
However, the haustral
folds of bowel loops may not be seen in a chest X-ray.
The "accordion sign" may be seen, defined as alternating edematous haustral
folds separated by transverse mucosal ridges filled with oral contrast material.
On plain abdominal radiographs, cecal volvulus is seen as a rounded focal collection of air-distended bowel, with haustral
creases, that resembles a "coffee bean" or "comma." Several other findings, such as little or no gas in the distal colon and dilation of small-bowel with air-fluid levels, are known to be useful for the diagnosis of cecal volvulus.
This sign describes the appearance of alternating, edematous haustral
folds that are due to transmural edema and are separated by transverse mucosal clefts filled with oral contrast (Figure 24).
(1) The presence of a normal haustral
pattern also supports the sign being a normal variant.