ANAMNESIS / SYMPTOMS:
A 44 year old patient suffers from a recurrent, postprandially occuring intumescence in the area of the right parotid gland. At the time of anamnesis the gland is swollen and painful on palpation.


FINDINGS:
On the right posterior margin of the mandible is on a transversal plane a highly echoic reflection with a recognizable distal signal enhancement visible. Medial of the reflection seems to be a hypoechoic band which continues into the parenchyma of the parotid gland. The parenchyma of the parotid gland itself seems to be without pathological sonographic findings except for the hypoechoic structure.


DIAGNOSIS:
The patient suffers from a small sialolith located in the parotid duct and lying on the masseter muscle that leads to a retention of saliva and a consecutive dilation of the parotid duct.



Informations on the internet:

1) AWMF
2) Medicine Worldwide
3) Roche Lexikon Medizin
4) Pathologie Online