Salivary gland tumour
- 70% are benign
- Most are in parotid
- Ultrasound – modality of choice for salivary gland
- The smaller the gland, the higher risk that the tumor is malignant
- Lateral parotidectomy
- Superficial – with large margin
- As early as possible
- Complete
- Complications:
- Facial nerve injury
- Gustatory sweating
- Gustatory hyperlacrimation
- Benign tumours
- Clinical features
- Slow growth
- Painless
- Soft or tense
- Mobile nodule
- No additional symptoms
- Pleiomorphic adenoma
- 85% of benign
- Radiation, occupational exposure
- Firmer tumour
- Diagnosis
- Histology – pleiomorphic cells
- 5% can turn malignant
- 5% recur
- Treatment
- Superficial parotidectomy
- Warthin tumor
- Older males
- 10% of benign
- Etiology
- Radiation
- Smoking
- Softer tumour
- Treatment
- Complete surgical excision while preserving facial n.
- Clinical features
- Malignant tumours
- Etiology
- Radiation
- Clinical features
- Rapid growth
- Painless, fixed nodule
- Enlarged lymph nodes
- Infiltration of facial nerve
- Diagnosis
- FNAB
- CT for infiltration
- Types
- Mucoepidermoid carcinoma
- Most common in children
- Most are low-grade
- Painless swelling -> later becomes painful
- Acinar cell carcinoma
- Locally invasive
- Older women
- Adenoid cystic carcinoma
- Locally invasive
- Poor radiosensitivity
- Mucoepidermoid carcinoma
- Treatment
- As complete as possible removal -> radiation
- Etiology