Thumbprinting is a radiographic sign of large bowel wall thickening, usually caused by edema, related to an infective or inflammatory process (colitis). The normal haustra become thickened at regular intervals appearing like thumbprints projecting into the aerated lumen.
Thumbprinting may be seen in:
- inflammatory bowel disease
- infection (i.e. pseudomembranous colitis)
- ischemic bowel
- mucosal/submucosal hemorrhage 2
Thumb-shaped, nodular, indentations at regular intervals in the bowel wall.
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- 2. Liberman M, Labos C, Wiseman J. Bowel wall "thumbprinting" in pseudomembranous colitis. Med. J. Aust. 2003;179 (2): 107. Pubmed citation
- 3. Cutinha AH, De Nazareth AG, Alla VM et-al. Clues to colitis: tracking the prints. West J Emerg Med. 2011;11 (1): 112-3. Free text at pubmed - Pubmed citation