Overview
Pseudomembranous colitis (PMC) is a severe form of colitis. In this condition, something attacks and injures your colon lining (mucosa). It might be bacteria, toxins or another illness. Your colon mucosa develops thickened, scab-like plaques over the wounds. Your healthcare provider might call these “pseudomembranes.”
What are pseudomembranes?
Pseudomembranes develop on mucous membranes, like your colon lining, when cells die. Your immune system sends white blood cells to the site of the injury. Leftover cellular debris combines with white blood cells called neutrophils to form pseudomembranes. They’re raised areas on the mucosa, up to 2 centimeters (cm) wide, with a yellow-white color.
Advertisement
