Presentation
Right periauricular swelling.
Patient Data
A dense stone is seen at the right parotid gland measuring 5 x 6 mm at the center of its superficial part. Focal enhancement of the posterior part of the gland is seen with associated intra-ductal dilatation and enhancement in keeping with focal calcular parotitis.
Case Discussion
Sialolithiasis is the commonest cause of sialadenitis and submandibular gland is the commonest followed by the parotid gland. Calcular parotitis manifests as heterogeneously attenuating obstructed part with enhancement and proximal ductal dilatation. More severe forms may represent abscess formation and extension of the inflammatory process to the surrounding structures.