<prompt> Which of the following is not a feature of Crohns disease?Spiking feverEnterovesical fistula FecaluriaPerianal tagsProctitis  <response>: Crohns disease - Intraabdominal abscess causing spiking fever High grade with chills rigor Hallmark - Fistula formation Peri-anal fistula - Fecaluria Communication between the gut and Bladder; stool will come in urine -Rectum is spared -MC pa involve is T. ileum -Proctitis- usually a feature of UC. MC pa involve in UC is Rectum. 