Does three-dimensional intraglandular location predict malignancy in parotid tumors?

Area of Science:

• Otolaryngology
• Head and Neck Surgery
• Oncology

Background:

• Parotid tumors present a diverse range of benign and malignant conditions.
• Accurate diagnosis and risk stratification are crucial for effective patient management.

Purpose of the Study:

• To investigate the correlation between the anatomical location of intraparotid masses and the likelihood of malignancy.
• To identify key factors aiding in the preoperative assessment of parotid tumor malignancy risk.

Main Methods:

• Retrospective cohort study of patients undergoing open parotid tumor excision.
• Tumor location determined via preoperative imaging; analyzed demographic, clinical, and radiographic data.
• Statistical analysis included chi-squared tests and stepwise logistic regression.

Main Results:

• Older age and the presence of local pain were significantly associated with malignancy.
• Tumors located anterior to the retromandibular vein's posterior border showed a 2.18-fold increased odds of malignancy.
• Multivariate analysis confirmed age, pain, and specific anterosuperior/superoinferior locations as predictors of malignancy.

Conclusions:

• Tumor location within the parotid gland, particularly anterior to the retromandibular vein, is a significant predictor of malignancy.
• Patient age and the presence of pain are also valuable indicators for assessing malignancy risk.
• Integrating these factors into preoperative assessments can improve diagnostic accuracy for parotid tumors.