Beyond the Ordinary: Giant Parotid Oncocytoma and the Complexity of Diagnosis.

Abstract

Parotid oncocytoma is a rare benign salivary gland tumor, often misdiagnosed due to overlapping features with other parotid neoplasms. We present the case of an 87-year-old male with a progressively enlarging right parotid mass, confirmed as oncocytoma through imaging and histopathological analysis. The excised oncocytoma measured approximately 9 cm in its greatest dimension, making it one of the largest parotid oncocytomas reported in the literature to date. This case highlights the diagnostic challenges associated with parotid oncocytomas, the limitations of fine-needle aspiration, and the importance of comprehensive diagnostic tools. Surgical resection was curative, with no recurrence at 12 months.