[Involvement of the appendix in the inflammatory process in severe nonspecific chronic ulcerative colitis in children].

The authors examined appendix tissues taken from 16 children and adolescents who had undergone colectomy for severe chronic ulcerative colitis. Fourteen patients had the mucosa and submucous layer involved in the chronic inflammatory process that is typical of ulcerative colitis, 5 patients showed inflammation in the muscular and subserous layers. The clinical symptomatology of appendicitis was absent.