ANAMNESIS / SYMPTOMS:
A 55 year old patient reports about an occasionally occuring swelling in the area of the left parotid gland. The symptoms started to occur 4 years ago.


FINDINGS:
The parenchyma of the left parotid gland seems to be slightly softened. Starting from the parenchyma is in the hilum of the gland a hypoechoic band with a width of 1,5 mm visible that seems to run above the masseter muscle to the distal margin on the sonogramm.


DIAGNOSIS:
The patient is suspected of suffering from a stenosis of the duct of the parotid gland.


DIFFERENTIAL DIAGNOSIS:
Concrement