“…Of these 19 (67%) were diagnosed with ulcerative colitis [2, 3, 5, 7, 9-11, 13-19, 21-28], and 4 (11%) with Crohn disease [4,6,8,20]. In most cases the bowel disease appears to precede the onset of the oral lesions by months or years [10,22], and the severity of oral disease frequently tends to parallel the activity of the bowel disease [4,5,22,25]. However, in some cases gastro-intestinal disturbances is so minimal that it may remain undetected unless the patient is directly questioned about symptoms and the bowel specifically investigated [4,7].…”