Surgical Outcome of Parotid Gland Tumours: An experience from two institutions in Iraq
Kerbala Journal of Medicine,
Volume 8, Issue 1, Pages 2077-2084
Abstractbackground: Approximately 80% of salivary gland tumours occur in the parotid gland. Of these, approximately 75- 80% are benign. Physical examination is the first diagnostic tool. Ultrasonography, CT and/or MRI are useful complementary studies for correct surgical planning. Fine-needle aspiration cytology (FNAC) is also indicated by some authors.
Objectives: To analyze the different types of parotid gland tumours, the modalities of surgical treatments and their complications, and the role of FNAC.
Methods: Data of 45 patients who were treated for parotid gland lesions, were analyzed retrospectively. FNAC was performed in 31 patients and concordance between FNAC and final histological diagnosis were assessed.
Results: Forty-five patients involved in this study (mean age 36.6 years); there was a female gender predominance. Most of the cases were benign. Pleomorphic adenoma was the most common benign tumour while mucoepidermoid carcinoma was the most common tumour in the malignant group. All tumours were localized in the superficial lobe. Most of our patients underwent a conservative superficial parotidectomy. FNAC was performed in 31 patients; there was 87% concordance between FNAC and final histological diagnosis. Sensitivity and specificity rates were 75% and 100% respectively and diagnostic accuracy was 97%.
Conclusions: The diagnosis of parotid gland neoplasm must be considered in any patient presenting with a mass near the mandible. Pleomorphic adenoma and Warthin‟s tumour were the most frequent histological types. Superficial parotidectomy appears to be the treatment of choice. Preoperative FNAC plays an important role in the accurate diagnosis of parotid tumors. Surgery was the only tool for definite diagnosis and definitely prevents long term malignant degeneration.
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