How we have treated parotid gland tumors

Area of Science:

• Oncology
• Surgical Pathology
• Maxillofacial Surgery

Background:

• Parotid gland tumors are rare, with glandular origin tumors presenting unique diagnostic and therapeutic challenges.
• Understanding the epidemiology and clinical behavior of parotid tumors is crucial for effective management.

Purpose of the Study:

• To analyze the clinical characteristics, surgical treatment, and outcomes of parotid gland tumors of glandular origin.
• To evaluate survival rates and recurrence patterns for both benign and malignant parotid tumors.

Main Methods:

• Retrospective analysis of 782 patients treated for parotid gland tumors between 1972 and 1994.
• Surgical interventions included subtotal, total, and radical parotidectomy.
• Data collected on tumor size, patient age, tumor type, surgical approach, and patient outcomes.

Main Results:

• Benign tumors (85.53%) were more common than malignant tumors (14.47%), with peak incidence in the sixth decade.
• Tumor size averaged 3-6 cm; larger tumors (>15 cm) were rare.
• Transient facial nerve injury occurred in 18.63% of cases, primarily after total parotidectomy.
• Five-year survival for malignant tumors was 48.89%, with recurrence rates of 17.62% (total) and 26.12% (radical parotidectomy).

Conclusions:

• Surgical management of parotid gland tumors requires careful consideration of tumor type and extent.
• While benign tumors have low recurrence, malignant parotid tumors necessitate aggressive surgical approaches with significant recurrence and survival considerations.
• Facial nerve preservation remains a key challenge in parotidectomy procedures.