Sinonasal Lymphoma: A Case Report

Sinonasal lymphoma represent 1.5% of all lymphomas. Clinical presentations of sinonasal lymphoma vary according to the histological type of tumor. Histologic diagnosis with immunohistochemical confirmation is of utmost importance. Computed tomography/magnetic resonance imaging (CT/MRI) scans are done to stage the tumor locally and to check for the presence of metastasis. Treatment involved chemotherapy and Radiotherapy. We report the case of a 45-year-old patient, who consulted for a progressive left unilateral nasal obstruction, with mucopurulent rhinorrhea. Nasal endoscopy showed a polypoid formation obstructing the entire left nasal cavity. A biopsy was performed, revealing in favor of an infiltrating malignant tumor process of which lymphomatous origin is evoked requiring immunostaining for phenotyping. The immunohistochemical study concluded in lymphoma. This work was carried out to study the clinical presentation, location, histopathological diagnosis and immunohistochemical profile of sinonasal lymphomas.