This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Surgery
All the following features our pancreatic adenocarcinoma over non-functioning PET (NF PET) in differentiating both the tumours 
Select and explain. 
A. <5cm, B. Calcifications, C. Negative chromogranin A, D. Negative Somatostatin receptor scintigraphy
B: Calcifications
Answer: B: Calcifications 
Explanation: Differentiation from the more aggressive pancreatic adenocarcinoma is extremely impoant. Recognition of NF-PETs is imperative because of their respectability and excellent long-term survival compared with their exocrine counterpas.Pancreatic cancerNF-PETsTumour size<5cm>5cmCT scanHypodensityHyperdensityNo calcificationsCalcifications possibleChromogranin ANegativePositiveSomatostatin receptorscintigraphyNegativePositiveRef: Bailey and Love 27e pg: 852