RESUMO
Most extranodal lymphomas arise in the gastrointestinal tract, but the other mucosal organs are rarely involved. We report a case of primary mucosa-associated lymphoid tissue (MALT) lymphoma of the nasal cavity. A 65-year-old woman was refered to our hospital with a history of prolonged epiphora in the left eye. Although nasal examination suggested normal except marked mucosal thickening of the inferior turbinate, partial inferior turbinectomy and biopsy revealed subepithelial infiltration of atypical lymphoid cells that stained for CD20, CD79a, and BCL-2 ; stained weakly for CD43, and this patient was finally diagnosed as having primary MALT lymphoma of the nasal cavity. This patient achieved complete remission after radiation therapy, and she remains free of disease for 6 months.