Abstract
A 77-year-old woman was admitted to our hospital because of a right preauricular mass, which was palpated as a 3.5×4.0cm sized tumor. This tumor had gradually enlarged since 7 years ago when a contralateral adenolymphomama (Warthin's tumor) was removed. Ultrasonography revealed a wellcircumscribed and low echoic tumor. CT scan showed a homogenously enhanced tumor with a lowdensity area inside. The tumor was extirpated under a diagnosis of parotid tumor, which was histologically lympoma of mucosa-associated lympoid tissue (MALToma) arising from a history of chronic parotitis. The patient remains well with no evidence of recurrence 4 years after the removal. Bilateral parotid tumors of diffrent histology are extremely rare, and this is the 8th such case in the literature, and the first to combine adenolymphoma and MALToma.
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Schedule a callMore From: Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association)
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