LR, it looks to me that you are mostly right. Some nitpicker might point out that the name ulcerative colitis is often used as a common name for ulcerative proctitis (UP), proctosigmoiditis (UPS), left-sided colitis, pancolitis and acute severe ulcerative colitis. see: https://www.mayoclinic.org/diseases-conditions/ulcerative-colitis/symptoms-causes/syc-20353326 However, IPIX, by pointing out that foam/gel is developed for UP/UPS, limited the meaning to ulcerative colitis type of IBD other than UP/UPS.