prediverticular disease of colon

longitudinal and circular muscle thickening with redundancy of folds secondary to myostatic contracture

findings:

"saw tooth sign": crowding and thickening of haustral folds (shortening of colonic segments)
superimposed muscle spasm (relieved by antispasmodics)

DDx: hemmorhage; ischemia; radiation; pseudomembranous colitis

Yong H. Hahn, MD - 2 February 1995
Last updated: 1 October 2013