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Fatal primary diffuse large B‐cell lymphoma of the maxillary sinus initially treated as an infectious disease in an elderly patient: A clinicopathologic report |
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| Authors: | Mayara Santos de Castro Cínthia Magalhães Ribeiro Marina Lara de Carli Alessandro Antônio Costa Pereira Felipe Fornias Sperandio Oslei Paes de Almeida João Adolfo Costa Hanemann |
| Affiliation: | 1. Department of Pathology and Parasitology, Institute of Biomedical Sciences, Federal University of Alfenas, Alfenas, Brazil;2. Department of Clinic and Surgery, School of Dentistry, Federal University of Alfenas, Alfenas, Brazil;3. Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil |
| Abstract: | ObjectiveTo report a case of primary diffuse large B‐cell lymphoma (DLBCL) of the maxillary sinus in an 82‐year‐old Caucasian woman.BackgroundDiffuse large B‐cell lymphoma of the maxillary sinus has non‐specific signs and symptoms that may be confused with benign inflammatory conditions and upper respiratory infections.MethodsAn incisional biopsy was performed. CD20+/CD3–/Ki‐67: 95% cells were observed.ConclusionA good medical history, clinical and imaging evaluations and immunohistochemical reactions are crucial to establish a correct and early diagnosis of DLBCL. |
| Keywords: | diffuse large B‐cell lymphoma extranodal lymphoma immunohistochemistry non‐Hodgkin lymphoma |