<unk> s usually present as a lump or swelling in the affected gland which may or may not have been present for a long time. The lump may be accompanied by symptoms of duct blockage (e.g. xerostomia). Usually, in their early stages it is not possible to distinguish a benign<unk>  from a malignant one. One of the key differentiating symptoms of a malignant growth is nerve involvement; for example, signs of facial nerve damage (e.g. facial palsy) are associated with malignant parotid<unk> s. Facial pain and paraesthesia are also very often associated with malignant<unk> s. Other red flag symptoms which may suggest malignancy and warrant further investigation are fixation of the lump to the overlying skin, ulceration and induration (hardening) of the mucosa.
Salivary gland tumour
Thyroid neoplasm
Thyroid lymphoma
Salivary gland fistula
Salivary gland disease
Salivary duct stricture
Thyroid cancer
Nasal glioma