Oncocitoma de glándula parótida: estado del arte y reporte de caso clínico

Abstract

Objectives: To obtain a broader view of the information available regarding Oncocytoma and to generate updated evidence for the identification of this pathology at present. To present a clinical case of a patient with Oncocytoma, reviewing ways to establish the diagnosis and treatment to be followed. Introduction: Oncocytoma is a benign tumor of the salivary glands composed of large epithelial cells known as oncocytes. The World Health Organization classifies oncocytic cell tumors in three ways: Oncocytosis, Oncocytoma and Oncocytic Carcinoma. This pathology manifests itself in almost all individuals around the 6th and 8th decade of life. The tumor appears as a firm, well-circumscribed, reddish-brown, slow-growing mass. Ultrasound is the appropriate modality for visualization, characterization and image guidance; computed tomography (CT) has become the first-class modality; although magnetic resonance imaging (MRI) is also useful. Oncocytoma histologically presents as a tumor of large polyhedral cells, with abundant granular and eosinophilic cytoplasm. Surgical intervention is the treatment of choice, whether partial or total parotidectomy, or in the best case excision of the tumor; It will depend largely on the location and size of the tumor. Case presentation: An 82-year-old male patient who came to the clinic presenting an increase in volume in the left preauricular region of approximately 2 years of evolution, this increase has been gradual over the years; the presumptive diagnosis is Pleomorphic Adenoma