In sjogren syndrome salivary flow rate of each parotid becomes:

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.