Selective Deep-Lobe Parotidectomy for Benign Parotid Gland Tumors.

Area of Science:

• Otolaryngology
• Surgical Oncology
• Head and Neck Surgery

Background:

• Deep-lobe parotid tumors have thicker capsules and less penetration than superficial tumors.
• Conservative surgical approaches are often favored for benign deep-lobe parotid gland tumors.

Purpose of the Study:

• To evaluate the surgical outcomes and oncological safety of selective deep-lobe parotidectomy (SDLP).
• To assess complication rates and cosmetic results following SDLP for benign deep-lobe parotid lesions.

Main Methods:

• Retrospective evaluation of 22 patients who underwent SDLP.
• Data collected included patient demographics, tumor characteristics, hospitalization, recurrence, complications (e.g., facial nerve impairment, Frey's syndrome), and cosmetic outcomes.
• Facial contour symmetry was assessed using a 0-10 visual analog scale (VAS) post-surgery.

Main Results:

• Pleomorphic adenoma was the most common diagnosis (59.1%).
• Temporary facial nerve (FN) paralysis occurred in 13% of patients, resolving spontaneously.
• No permanent FN paralysis, Frey's syndrome, first-bite syndrome, or sialocele were observed. Mean VAS score for symmetry was 9.43.
• Median follow-up was 71.7 months with no recurrences.

Conclusions:

• SDLP is a safe surgical option for benign deep-lobe parotid gland lesions.
• The procedure is associated with low complication rates and favorable cosmetic outcomes.
• Oncological safety is maintained with SDLP for these tumors.