SIALOGRAPHY

 Assessment of salivary and lacrimal gland
 Dye used iodine
 Appearances :
o Normal sialographic — tree limb
o Sjogren’s syndrome — cherry blossom or fruit laiden tree
 It is the best investigation done for sialolithiasis Except in submand duct.
 Anatomical assessment of salivary – sialography
 Functional assessment of salivary gland — scintigraphy

ULTRA SONOGRAPH / USH (non – radiation)
 To dislinguish between cystic and solid lesion
 No radiation here CYST
 Barium Meal test known as schilling test for malabsorption disorder.