Intra-parotid lymph node metastasis in patients with non-cutaneous head and neck cancers: clinical and imaging features for differentiation from simultaneous parotid primary tumor

Background Although uncommon, intra-parotid lymph node (IPLN) metastasis should be considered in the differential diagnosis of parotid masses in patients with head and neck cancers. Purpose To compare the clinical and imaging features of IPLN metastases from head and neck cancers and simultaneous parotid primary tumors. Material and Methods A retrospective review of 2199 patients with non-parotid head and neck cancers revealed 63 patients who...