A CASE OF RAPID MUCOSAL COLOR CHANGES FROM WHITE TO RED OCCURRING DURING COLONOSCOPIC EXAMINATION-A CASE REPORT-

Abstract

The patient is an 82-year-old man. He was referred to our hospital for colpnoscopic examination due topositive stool occult blood on periodic health examination. When the descending colon was being examined under direct visual control, the mucosa turned whitely in all of a sudden in a longitudinal axis and bubble formation was seen. At the same site numerous millet grain sized minute white elavations were appeared. Later the mucosa changed in color from white to red. On the third day, longitudinal erosions were noted. Based on these findings, a diagnosis of acute ischemic colitis was made. Not only decrease in blood flow but also reperf ution has important implications with respect to the occurrence of an ischemic lesion. It appears that ischemia occurred when the mucosa turned white in color during colonoscopic examination and that reperf ution occerred when the mucosa changed color from white to red later. A view of the literatures revealed few reference to rapid .mucosal color changes from white to red occurring during colonoscopic examination.