[CLINICAL AND MORPHOLOGICAL CHARACTERISTICS OF INTESTINAL LESIONS IN PATIENTS WITH PRIMARY SCLEROSING CHOLANGITIS].

Objective: To compare the clinical, endoscopic picture and morphological changes of the intestinal mucosa in patients with primary sclerosing cholangitis (PSC). Materials and methods: 31 patients with PSC (women - 15 men - 16) were included in study group. The diagnosis of ulcerative colitis (UC) was established in 8 patients, Crohn's disease (CD) - in 5, unclassified colitis (UCC) - in 7, and 11 patients had no clinical and endoscopic signs of IBD. The control group consisted of 30 patients with IBD: UC - 20 patients, CD - 10 persons. All the patients performed ileocolonoscopy (ICS) with multiple biopsy and histological examination of material. Results: The prevalence of IBD in patients with PSC was 64.5%. IBD with PSC was characterized by extensive colitis with mild clinical activity. Morphological activity of IBD associated with PSC was usually moderate and severe. Morphological activity of disease in IBD/PSC group was lower than in UC alone (p < 0.05). IBD onset came before PSC symptoms (p < 0.05). Distal gradient of inflammation in colon predominated in IBD/PSC group when disease starts with IBD symptoms, in case of PSC symptoms - proximal gradient was more frequent. In IBD/PSC group affected ileum were detected in a third of cases, including CD ileitis - 60%, backwash ileitis in UC (NCC) in 26.7%, that was significantly frequently than in UC alone (p = 0.02). Within the IBD/PSC group 30% of patients with colitis were without damaging of rectum. In all the patients with PSC without clinical, endoscopic signs of colitis polymorphocellular infiltration of mucosa were founded. Eosinophilic infiltration of mucosa in group of PSC met significantly more frequently than in other study groups. Fibrosis of intestinal mucosa was founded significantly more frequently in group of PSC without IBD compared with UC/PSC and UC patients, but not with CD group. Conclusions: For IBD in PSC extensive colitis without lesions of the rectum, backwash ileitis are common. There are some morphological differences in the intestinal lesions within the IBD/PSC patients depending on the type of disease onset. There is a dissociation between low clinical activity and intensive morphological inflammation. When PSC had no clinical features of IBD, a microscopic ileocolitis (characterized by eosinophilic infiltration and fibrosis of the intestinal mucosa) without nosological classification was founded in all patients.

[Morphological and immunohistochemical characteristic of oral mucosa in patients with inflammatory bowel disease].

The aim of presented study was to investigate the morphological and immunohistochemical characteristics of the oral mucosa in patients with Crohn's disease and ulcerative colitis. The study involved 40 patients aged from 18 to 64 years, among them 30 patients with Crohn's disease and 10 patients with ulcerative colitis. Clinical, endoscopic, morphometric and immunohistochemical study have shown that Crohn's disease is characterized by generalized inflammation in the gastrointestinal tract with signs of immune inflammation in the mouth, whereas in ulcerative colitis the pathologic process is limited to the colon. In this context, the defeat of the oral mucosa can be regarded as a distinct phenotypic characteristic of the localization of Crohn's disease, with some differential-diagnostic and prognostic criteria.

[Morphological and immunohistochemical characteristics of oral mucosa in patients with inflammatory intestinal disorders].

The aim of the work was to study morphological and immunological characteristics of oral cavity in patients with Crohn's disease and ulcerative colitis. The group of 40 patients aged 18-64 yr included 30 with Crohn's disease and 10 with ulcerative colitis. They were examined in clinical, endoscopic, morphometric, and immunohistochemical studies. Crohn's disease was shown to be associated with inflammatory processes in the gastrointestinal tract and oral mucosa; in ulcerative colitis, these processes were confined to the colon. It is supposed that inflammation of oral mucosa may be regarded as a separate phenotypic characteristic of Crohn's disease localization with definitive differential diagnostic and prognostic criteria.