In addition, significant parotid gland sparing was achieved in the conformal plans.

Metastasis to the parotid gland occurred in 2 cases, including the present case.

In either case, they are extremely rare in the parotid gland.

Conclusion: Morphological and functional MRI characteristics are associated with malignancy in parotid gland.

Six tumors occurred in the parotid gland and six in the submandibular gland.

We report a case with recurrent severe parotid gland infections.

Conclusion: The study of NE can allow the characterization of benign parotid gland tumors.

We report two patients with myoepithelioma of parotid gland presenting as infra-auricular subcutaneous mass.

Five subjects had stone in the submandibular gland, and 1 in the parotid gland.

Metastatic tumours involving the parotid gland arising from non-head and neck origin are rare.

A case of sarcomatoid carcinoma of the parotid gland is described in a 47-year-old male.

The parotid gland was the most common location (n = 47).

Transport alteration from the circulatory system into the parotid gland may be the underlying mechanism.

Metastatic spread to the parotid gland is a rare clinical entity that requires multidisciplinary intervention.

The MRI also showed a normal rest-parenchyma of the parotid gland without any pathologic findings.

Stimulated salivary flow rates were measured separately from each parotid gland pretherapy and periodically posttherapy.