Most common cause of pseudopancreatic cyst in children is -: (A) Chloledochal cyst, (B) Annular pancreas, (C) Drug induced pancreatitis, (D) Traumatic pancreatitis
Answer is D. Pancreatic pseudocyst follows acute attack of pancreatitis and trauma is the most common cause of acute pancreatitis in children.

Most common causes of acute pancreatitis in children include:

Blunt abdominal injuries,
Mumps and other viral illnesses
Congenital anomolies