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KMID : 0359020080370050374
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Korean Journal of Gastrointestinal Endoscopy
2008 Volume.37 No. 5 p.374 ~ p.379
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Three Cases of Colonic Pseudolipomatosis Induced by Endoscope Disinfectant
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Lee Jun-Young
Han Won-Cheol
Son Byoung-Kwan
Kim Yong-Sung
Sohn Young-Woo
Oh Yong-Reol
Park Jung-Hyun
Kim Hui-Jung
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Abstract
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Colonic pseudolipomatosis is a benign condition that is caused by mechanical trauma during an endoscopic procedure or by disinfectant colitis. It is characterized by empty vacuoles that are similar to the adipocyte in the lamina propria on histology and whitish plaques that are seen endoscopy. The prevalence of pseudolipomatosis is relatively low due to the lack of clinical experience and there have been no Korean reports about colonic pseudolipomatosis with the typical endoscopic findings. We report here on three cases of colonic pseudolipomatosis that was caused by endoscope disinfectant (paracetic acid). Typical whitish plaques were observed during the colonoscopic procedures in all 3 cases. In one case, whitish plaques appeared before our eyes immediately after the sudden appearance of whitish foamy fluid when the water button was depressed. H&E stain revealed empty vacuoles in the lamina propria and immunohistochemical staining showed no expression of CD31, CD34 and s-100. There were no symptoms related to these lesions in our cases.
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KEYWORD
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Pseudolipomatosis, Colon, Endoscope disinfectant, Paracetic acid
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