<prompt> The following feature is in our of ulcerative colitis over Crohn;s diseaseCobblestoningRectal sparingFistulaBlood and mucus in stool  <response>: The major symptoms of UC are diarrhea, rectal bleeding, tenesmus, passage of mucus, and crampy abdominal pain.Ulcerative ColitisCrohns diseaseClinical Gross blood in stoolYes OccasionallyMucusYesOccasionallySystemic symptomsOccasionallyFrequentlyPainOccasionallyFrequentlyAbdominal massRarelyYesSignificant perineal diseaseNoFrequentlyFistulasNoYesSmall intestinal obstructionNoFrequentlyColonic obstructionRarelyFrequentlyResponse to antibioticsNoYesRecurrence after surgeryNoYesEndoscopicRectal sparingRarelyFrequentlyContinuous diseaseYesOccasionallyCobblestoningNoYesGranuloma on biopsyOccasionallyRadiographicSmall bowel significantly abnormalNoYesAbnormal terminal ileumNoYesSegmental colitisNoYesAsymmetric colitisNoYesStrictureOccasionallyFrequentlyRef: Harrison 19e pg: 1956 