Abstract
We would like to thank Baudet et al. for their interest in our case report describing ”cat scratch” lesions [1]. Red linear marks or parallel corkscrew lesions have been observed in the right side of the colon [2] [3]. These endoscopic findings are considered to be the early appearance of mucosal injury without perforation resulting from barotrauma [3]. The article by McDonnell et al. highlighted to us the importance of these endoscopic findings [4]. McDonnell et al. reported a higher proportion of collagenous colitis in patients with cat scratch colon [4]. Furthermore, in patients with collagenous colitis, mucosal tears or lacerations following endoscopic air insufflation have been considered to be mucosal injury resulting from decreased compliance of the collagen-containing mucosa [5] [6] [7]. Yarze suggested these injuries were the result of barotrauma [8]. Similar findings have also been observed in patients with diversion colitis, with or without ulcerative colitis [9] [10].
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