Crohn's disease is characterized by a transmural granulomatous inflammation that can affect any part of the gastrointestinal tract.

Crohn's disease looks like what would appear to be a second-degree burn in the colon and rectum areas only.

Crohn's disease causes continuous inflammation of the mucosa and sub-mucosa of the colon and rectal linings.

Crohn's disease has the appearance of a patchwork quilt with some areas that are clear and some with sores.