This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
In a child wich disease is misdiagnosed as appendicitis? 
Select and explain. 
A. Gastroentritis, B. Lymphadenitis, C. Intussusception, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Differential diagnosis of acute appendicitis Gastroenteritis Mesenteric adenitis Meckel's diveiculitis Intussusception Intussusception Lobar pneumonia Ref: Bailey & Love&;s Sho Practice of Surgery,E25,Page-1209