snow white sign

An endoscopic finding seen in hydrogen peroxide—H2O2—enteritis, which consists of pure white GI mucosa with frothy bubbles extending over multiple mucosal crests and valleys, likened to the image of freshly fallen snow in the mountains; it was caused by use of H2O2 for cleaning endoscopes between use and is now of historic interest
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

snow white sign

GI disease An endoscopic finding seen in hydrogen peroxide–H2O2 enteritis, which consists of pure white GI mucosa with frothy bubbles extending over multiple mucosal crests and valleys, analogous to moguls on a ski slope; it was caused by use of H2O2 for cleaning endoscopes between use. Cf Hydrogen peroxide enteritis.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.