A 64 year old male was admitted to the medical ward with complaint of diarrhea, abdominal pain and weight loss for few months. Examination: clubbing, perianal skin tags and abdominal junction. He was dx with what?

The key is A. CD. [Diagnosis is Crohn’s disease. Crohn's disease is a type of inflammatory bowel disease (IBD) that may affect any segment of the gastrointestinal tract from the mouth to the anus. Symptoms often include abdominal pain, diarrhea (which may be bloody if inflammation is severe), fever, and weight loss. Clubbing, perianal skin tags and aphthous ulcers can also may seen. Transmural granulomatous inflammation on colonoscopy is diagnostic of Crohn’s disease].