Ulcerative colitis causes inflammation and destruction of the tissue lining the colon. (Ref: http://www.healthopedia.com/ulcerative-colitis/\)
Alternate name is "Granulomatous Colitis"
Peter N. Robinson
Unless I am misunderstanding your request, this is referring to a disease rather than to a phenotypic feature. Consider using the following disease ontology term, or let us know more exactly what you need.
name: ulcerative colitis
comment: OMIM mapping confirmed by DO. [LS].
synonym: "Left-sided ulcerative colitis" EXACT [MTHICD9_2006:556.5]
is_a: DOID:0050589 ! inflammatory bowel disease