This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
In sjogren syndrome salivary flow rate of each parotid becomes: 
Select and explain. 
A. 5ml/min., B. 2ml/min., C. 1ml/min., D. 0.5ml/min.
D: 0.5ml/min.
Answer: D: 0.5ml/min. 
Explanation: The normal salivary flow rate of each parotid gland is 5ml/ min but in SS patients, this flow rate will be0.5ml/min.
The total uptake of radioisotope 99mTC - Pertechnetate is less in SS patients compared to normal salivary glands.
The sialography reveals formation of punctate, cavitary defects filled with radiopaque contrast media producing a Cherry blossom or branchless fruit-laden effect.
MRI of SS patients shows a "Salt and Pepper" appearance of the glands.