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KMID : 0356820170330020063
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Korean Journal of Head & Neck Oncology
2017 Volume.33 No. 2 p.63 ~ p.66
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A Case of Mucosa Associated Lymphoid Tissue Lymphoma in Accessory Parotid Gland
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Hong Seok-Jung
Lee Mi-Ji
Kim Seung-Woo
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Abstract
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The tumor in accessory parotid gland (APG) is rarely occurred and its incidence is about 7.7% of all parotid gland neoplasms, but has a higher frequency of malignancy than major salivary glands. The mucoepidermoid carcinoma is the most common malignancy in APG, while B-cell lymphoma is less than 2%. It is often appeared as superficial mass in mid-cheek area. This lesion requires differential diagnosis with epidermoid cyst, lipoma, neurogenic tumors, Stensen's duct stone, lymphadenopathy and hemangioma etc. The mucosa associated lymphoid tissue (MALT) lymphoma, which is also termed extra-nodal marginal zone B-cell lymphoma tends to be localized disease for long time and has a relatively indolent course. We recently encountered a 69-year-old man with superficial solitary mass on the right cheek area that finally diagnosed as MALT lymphoma in APG. We report the rare and unique case with brief literature review.
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KEYWORD
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Accessory parotid gland , Lymphoma , MALT
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