Cat scratch colon

McDonnell, W. Michael; Loura, F.; Pointon, Martin J.; Greenson, Joel K.

doi:10.1055/s-2007-966266

Cited by 68 publications

(21 citation statements)

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“…Although there is no feature that could be seen as truly pathognomonic of MC, or CC specifically, on colonoscopy, linear mucosal defects [5] or fractures of the colon mucosa have a higher sensitivity and specificity than cat-scratch colon, mucosal cobblestone or subtle changes of the surface mucosa vasculature [5,10,11,13-16]. Nevertheless, the official statement of the European Microscopic Colitis Group considers that colonoscopy is ‘normal or near-normal’ [1].…”

Section: Discussionmentioning

confidence: 99%

Macroscopic findings in collagenous colitis: a multi-center, retrospective, observational cohort study

Koulaouzidis

Yung

Németh

et al. 2017

aog

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BackgroundCollagenous colitis (CC) is by definition a histological diagnosis. However, colonoscopy often reveals characteristic endoscopic findings. The aim of this study was to evaluate the frequency and type of endoscopic findings in patients diagnosed with CC in 4 participating centers.MethodsThis was a retrospective study; the databases of 2 university hospitals in Edinburgh (Scotland) and Malmö (Sweden), and 2 district general hospitals in Tomelloso (Spain) and Gateshead (England) were interrogated for patients diagnosed with CC between May 2008 and August 2013. Endoscopy reports and images were retrieved and reviewed; data on lesions, sedation, bowel preparation and endoscopist experience were abstracted. Categorical data are reported as mean±SD. Fischer’s exact, chi-square and t (unpaired) tests were used to compare datasets. A two-tailed P-value of <0.05 was considered statistically significant.Results607 patients (149 male, mean age 66.9±12.25 years) were diagnosed with CC. A total of 108/607 (17.8%) patients had one or more suggestive endoscopy findings: i.e., mucosal erythema/edema, 91/607 (15%); linear colonic mucosal defects, 12/607 (2%); or mucosal scarring, 5/607 (0.82%). For colonic mucosa erythema, there was no difference in the odds of finding erythema with the use of different bowel preparation methods (P=0.997). For colonic mucosal defects there was some evidence (P=0.005) that patients colonoscoped by experienced endoscopists had 87% less odds of developing such defects. Moreover, there was evidence that analgesia reduced the odds of developing mucosal defects by 84%.ConclusionA significant minority of patients with CC have endoscopic findings in colonoscopy. The description of such findings appears to be related to the endoscopist’s experience.

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Section: Discussionmentioning

confidence: 99%

Macroscopic findings in collagenous colitis: a multi-center, retrospective, observational cohort study

Koulaouzidis

Yung

Németh

et al. 2017

aog

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“…The term ‘cat scratch colon’ was first used by McDonnell et al in 20071 to describe non- traumatic bright red linear markings in the colonic mucosa. Scope trauma, haemmorhagic colitis or, rarely colonic perforation may result in similar appearances 1.…”

Section: Answermentioning

confidence: 99%

“…Scope trauma, haemmorhagic colitis or, rarely colonic perforation may result in similar appearances 1. An association with collagenous and diversion colitis has been described, however the vast majority of cases are characterised by histologically normal mucosa and are asymptomatic 1–3.…”

Section: Answermentioning

confidence: 99%

A dramatic finding at colonoscopy: cause for concern?

Crooks¹,

Sampaziotis²,

Purkis³

et al. 2012

Gut

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“…It has been postulated that it may be a consequence of the barotrauma induced by air insufflation into a less compliant colon during colonoscopy [1], although pre-existing damage of the mucosal barrier or previous consumption of non-steroidal anti-inflammatory drugs may be associated. The lesions are not due to direct scope trauma.…”

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confidence: 99%

Pneumoperitoneum due to cat scratch colon. Is it really such an innocent disease?

Díaz-Sánchez

Riesco

Forero

et al. 2015

Digestive and Liver Disease

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Cat scratch colon

Abstract: The prevalence of bright red linear markings (cat scratch colon) in the cecum and ascending colon is 0.25%. These markings appear to be superficial breaks in the mucosa possibly secondary to barotrauma. Patients tend to be older women with higher proportion of collagenous colitis.

Cited by 68 publications

References 0 publications

Macroscopic findings in collagenous colitis: a multi-center, retrospective, observational cohort study

Macroscopic findings in collagenous colitis: a multi-center, retrospective, observational cohort study

A dramatic finding at colonoscopy: cause for concern?

Pneumoperitoneum due to cat scratch colon. Is it really such an innocent disease?

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