Bilateral parotid gland basal cell adenomas. Case report

Area of Science:

• Otolaryngology
• Head and Neck Surgery
• Oncology

Background:

• Parotid gland tumors are typically unilateral; bilateral occurrences are rare, comprising 1-3% of all parotid tumors.
• Common bilateral parotid tumors include Warthin's tumors and pleomorphic adenomas.
• Basal cell adenomas are a subtype of benign salivary gland neoplasms.

Observation:

• A case of a 65-year-old female with bilateral basal cell adenomas of the parotid glands is presented.
• Diagnosis was confirmed through clinical evaluation, imaging (ultrasonography and CT), and histopathological examination.
• The bilateral nature of the basal cell adenomas in this patient is a significant clinical observation.

Findings:

• Bilateral basal cell adenomas of the parotid glands are exceedingly rare, with this case being the sixth reported worldwide.
• The histological features of the tumors in both the left and right parotid glands were identical.
• The etiology of bilateral parotid tumors, including basal cell adenomas, remains largely unknown.

Implications:

• This case highlights the importance of considering rare tumor presentations in the parotid glands.
• The identical histology suggests a potential common underlying mechanism, possibly involving genetic or environmental factors.
• Further research into the pathogenesis of bilateral salivary gland tumors is warranted.