<prompt> Which among the following is an example for Inflammatory bowel diseaseIrritable bowel syndromeTropical sprueWhipples diseaseCrohns disease  <response>: Ans: d Crohns disease Ref: Harrison 17th Pg 1886Ulcerative colitis and Crohns disease are the two major types of IBD. Smoking and OCP increase the risk of Crohns disease Appendicectomy and smoking protects Ulcerative colitis P-ANCA: 60-70 of ulcerative colitis ASCA : 60 - 70 of Crohns disease If ve, chance of early complication Omp - C: 55 of Crohns disease if ve perforating disease Antibody to I2:50 of Crohns disease if ve fibro stenosing disease 