Ulcerative Colitis
Reference work entry
First Online:
DOI: https://doi.org/10.1007/978-3-642-16483-5_6095
Definition
A heterogeneous, idiopathic, chronic, relapsing, inflammatory condition that is immunologically mediated. Disease activity is triggered by environmental factors that transiently break the colonic mucosal barrier, stimulate immune responses, or alter the balance between beneficial and pathogenic enteric bacteria. There is also a genetic component that can be broadly characterized as causing defects in mucosal barrier function, immunoregulation, or bacterial clearance. Over time, there is an increased risk of colorectal cancer.
Copyright information
© Springer-Verlag Berlin Heidelberg 2011