This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Small and Large Intestines, Subject name: Pathology
Most common site of tuberculosis in gastrointestinal tract is - 
Select and explain. 
A. Stomach, B. Small intestine, C. Rectum, D. Ileocecal junction
D: Ileocecal junction
Answer: D: Ileocecal junction 
Explanation: Ans. is 'd' i.e., Ileocecal junction Tubercular ulcero The ileocecal region is the most common site of involvememt; i.e. ileocecal tuberculosis. Intestinal TB is divided into three typesUlcerative form : It is the most common form. It is characterized by multiple superficial ulcers placed transversly along ileum.Hypertrophic form : There is thickening of bowel wall with scarring, fibrosis and narrowing of lumen.Ulcerohypertrophic form : It has combination of features of both ulcerative and hypertrophic forms.o In contrast to typhoid ulcer, stricture is common in Tubercular ulcer.