학술논문

Histologic Correlates of Clinical and Endoscopic Severity in Children Newly Diagnosed With Ulcerative Colitis
Document Type
article
Source
The American Journal of Surgical Pathology. 41(11)
Subject
Biomedical and Clinical Sciences
Clinical Sciences
Clinical Research
Nutrition
Inflammatory Bowel Disease
Autoimmune Disease
Digestive Diseases
Pediatric
Oral and gastrointestinal
Adolescent
Age of Onset
Biopsy
Canada
Child
Child
Preschool
Colitis
Ulcerative
Colon
Colonoscopy
Eosinophilia
Female
Humans
Male
Predictive Value of Tests
Prospective Studies
Rectum
Severity of Illness Index
United States
ulcerative colitis
histology
pediatric
eosinophilia
PROTECT Study Group
Pathology
Clinical sciences
Language
Abstract
To characterize rectal histology in an inception cohort of children newly diagnosed with ulcerative colitis (UC) and to explore its relationship with clinical indices of disease severity. The PROTECT (Predicting Response to Standardized Pediatric Colitis Therapy) Study enrolled children 17 years of age and younger newly diagnosed with UC. Baseline rectal biopsies were evaluated for acute and chronic inflammation, eosinophilic inflammation (peak eosinophil count > 32 eosinophils/high powered field, eosinophilic cryptitis or abscesses), and architectural/nonarchitectural chronic changes. Correlation with clinical indices including Mayo endoscopy subscore and Pediatric Ulcerative Colitis Activity Index was performed. Rectal biopsies from 369 patients (mean age, 12.9±3.1 y, 50% female) were reviewed. Cryptitis was found in 89%, crypt abscesses in 25%, and eosinophilic inflammation in 58%. Crypt distortion/atrophy was present in 98% of specimens. Higher grades of acute and chronic inflammation were associated with the presence of basal plasmacytosis (P