An aggressive tumor in parotid gland

Abstract

Non Hodgkin Lymphoma (NHL) o f s alivary gland (SG) is rare with an incid ence o f 2-5%. We describ e a stage III, high grade NHL o f p arotid gland in a background o f benign lymphoepithelial lesions. A 54 year female presented with a right side facial mass since 6 months. Fine needle aspiration cytology (FNAC) sugg ested a lymphoproliferative disorder and superficial parotidectomy was done. Histopathology and immunohistochemistry (IHC) rev ealed an extranod al margin al zone NHL with trans formation to high grade di ffuse large B cell lymphoma. SG lymphoma should be considered in elderly and IHC helps in prognostication and treatment protocols.