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: Anatomy
In patient with chronic pancreatitis limited to tail and body with MPD diameter 4mm, ideal treatment would be 
Select and explain. 
A. Stenting, B. Puestow's operation, C. Frey's operation, D. Distal pancreatectomy
D: Distal pancreatectomy
Answer: D: Distal pancreatectomy 
Explanation: Surgical procedures in chronic pancreatitis Ideal procedure : DPPHR (Beger's) In presence of poal vein thrombosis : Frey's Small duct disease : V-shaped excision Disease recurrence in body and tail (after DPPHR, Whipple's or Longmire-Transverso procedure) : V-shaped drainage Disease limited to tail : Spleen - preserving distal pancreatectomy Ref: Sabiston 20th edition Pgno :1534