Cat Scratch Colon

Narrow band imaging for diagnosis of collagenous colitis

“…3 Cat scratch colon is defined as bright erythematous linear marks resembling scratches and is assumed to be barotrauma from air insufflation during a colonoscopic procedure. 1 Patients with 'cat scratch colon' have a higher prevalence of CC, although this phenomenon is not specific to CC. 1 The linear scratch marks in this case were subtle and visualized more clearly by using NBI, which might improve visualization of minimal intramucosal hemorrhage in the marks.…”

“…1 Patients with 'cat scratch colon' have a higher prevalence of CC, although this phenomenon is not specific to CC. 1 The linear scratch marks in this case were subtle and visualized more clearly by using NBI, which might improve visualization of minimal intramucosal hemorrhage in the marks. To our knowledge, this is the first report to describe the usefulness of NBI in the diagnosis of CC.…”

“…Based on the Chicago classification, the patient was diagnosed with jackhammer esophagus. 1 Medical therapy for approximately 4 months was ineffective, and the patient's symptoms worsened. Therefore, surgery was considered optimal for this patient.…”

“…Colon neoplasia and diverticula are both common diseases; however, adenoma or adenocarcinoma located within a diverticulum is very rare and only sporadic cases have been reported. 1,2 Cases of advanced lesions are the most often reported. 3 Even with early colon cancer, detailed endoscopic findings have not been demonstrated; thus, useful information for preoperative diagnosis may be limited.…”

Complications of collagenous colitis

“…Colonic fracturing after endoscopic instrumentation, possibly related to air insufflation and barotrauma, or insertion of barium contrast agents, has been recorded [26] . Recently, a report entitled "cat scratch colon" emphasized the macroscopic changes involving the proximal colon that are most often observed during colonoscopy in collagenous colitis [27] . Spontaneous peritonitis with colonic perforation has also been recorded [28] .…”