This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrine, Subject name: Pathology
Nesidioblastoma is due to hyperplasia of- 
Select and explain. 
A. Alpha cell, B. Beta cell, C. Acinus, D. D cells
B: Beta cell
Answer: B: Beta cell 
Explanation: Ans. (b) Beta cell(Ref: Robbins 9th/pg 1121; 8th/pg 1146)*Nesidioblastosis is Focal or diffuse hyperplasia of the b-cells Q in pancreatic islets*Nesidioblastosiscan also be seen in:#Infant of diabetic mother Q#Beckwith-Wiedemann syndrome Q#Rare mutations in the b-cell K+ channel protein or sulfonylurea receptor