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Erschienen in:
07.01.2016 | Classics in Abdominal Imaging
The small bowel feces sign
Erschienen in: Abdominal Radiology | Ausgabe 4/2016
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Diagnosing SBO on plain films can be difficult, especially if the bowel is fluid filled. In contrast, the sensitivity of diagnosing SBO with CT approaches 100% [1]. The small bowel feces sign is a CT manifestation of small bowel obstruction: particulate material mixed with gas bubbles in the small bowel, similar to the appearance of stool in the colon [2] (Figs. 1, 2). This altered appearance presumably reflects stasis and resultant absorption of more fluid than normal in the small bowel. It usually occurs proximal to the site of obstruction, thus helpful in locating a transition point in some cases [3, 4].
Fig. 1
Axial CT shows the small bowel feces sign: particulate material mixed with gas bubbles within the small bowel (yellow arrow). Note the similarity to stool within the colon (yellow arrowhead)
Fig. 2
Parasagittal image showing the point of obstruction caused by adhesions from a jejunostomy tube (yellow arrow). Small bowel feces sign proximal to the point of obstruction (yellow arrowhead)
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