Abstract
A 72-year-old female patient attended the stomatology clinic complaining of swelling in the region of the left jugal mucosa and a time of evolution of 6 months. On physical examination, a symptomatic increase in volume of hardened palpation was observed, measuring approximately 2.5 cm in length. After the ultrasonography of the region was requested, the patient was referred to the buccomaxillofacial surgery department. The clinical diagnosis of pleomorphic adenoma was established, and the excisional biopsy was performed. Histopathologic examination revealed a malignant neoplasm of lymphoid origin, requiring a complementary immunohistochemical report. Associating the morphologic findings with the immunohistochemical results of Bcl2, CD5, CD10, CD15, CD20, CD23, Cyclin D1, Ki-67, the diagnosis was follicular lymphoma, and the patient is still under treatment. Non-Hodgkin’s lymphoma is a malignant neoplasm that affects the head and neck region, and its classification is extremely important for treatment and prognosis.
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