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KMID : 0356820180340010049
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Korean Journal of Head & Neck Oncology
2018 Volume.34 No. 1 p.49 ~ p.53
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A Case of Co-Existence of Diffuse Large B cell Lymphoma in Parotid Gland and Follicular Lymphoma in Upper Neck
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Hong Seok-Jung
Kim Eun-Ju
Kim Seung-Woo
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Abstract
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Primary non-Hodgkin's lymphoma (NHL) rarely involves the parotid gland and its incidence is only 1.7% to 3.1% of all salivary gland neoplasms. The mucosa associated lymphoid tissue (MALT) is the most common subtype of NHL, followed by follicular lymphoma (FL) and diffuse large B cell lymphoma (DLBCL). However, two distinct types of lymphomas occurring synchronously in the parotid gland and cervical lymph node have not been reported earlier. A 72-year-old man with rubbery-hard and fixed mass on the left parotid area came to our clinic. We performed the left total parotidectomy with ipsilateral excision of lymph node (level II), and he was finally diagnosed as DLBCL in parotid gland and FL in upper neck. It is presumed that the DLBCL appeared to be a transformation from FL. We report the unique and rare disease entity with brief literature review.
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KEYWORD
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Diffuse large B cell lymphoma, Follicular lymphoma, Parotid gland
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