iPoop said...
Proctitis and ulcerative colitis are the same disease, the difference being the extent of disease. Proctitis is limited to the rectum, whereas a general uc diagnosis states the inflammation goes further.
Actually, there are many different types of proctitis, beyond ulcerative & Crohn's. Only ULCERATIVE proctitis and ulcerative colitis are the same disease, with ulcerative proctitis being limited to the rectum.