KeypointsIn patients undergoing parotidectomy, 20% have a malignant pathology.Overall accuracy of FNAC for benign etiologies was 82.6%.PPV for benign etiologies mostly ranges between 80 to 90%, with some subpopulations having higher values.In the 26% of cases were a malignant pathology was encountered, the FNAC was either benign or undiagnostic.FNAC results should be taken cautiously and always in context of the patient's history and physical examination.INTRODUCTIONSalivary gland neoplasms account for only 3% of all tumours; most (80%) arise in the parotid gland. The reported malignancy rate of parotid gland neoplasms ranges from 13% to 32%. The two most common benign parotid lesions are pleomorphic adenoma and Warthin tumour. The two most common malignancies are metastatic squamous cell carcinoma and mucoepidermoid carcinoma. Patient age at diagnosis is about 60 years for malignant parotid tumours and lower for benign tumours.Traditionally, parotid neoplasms are evaluated by fine‐needle aspiration cytology (FNAC). However, although FNAC has been found to be highly accurate for the diagnosis of neoplasm in other sites of the head and neck (eg thyroid, lymph nodes), its benefit in the parotid is controversial due to lower accuracy, mainly due to the many different pathologies encountered in the parotid gland. Earlier studies of
Clinical Otolaryngology – Wiley
Published: Jan 1, 2018
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