耳鼻咽喉科臨床
Online ISSN : 1884-4545
Print ISSN : 0032-6313
悪性腫瘍が疑われた耳下腺リンパ上皮性病変
平田 義成小澤 哲夫村上 信五湯本 英二
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87 巻 (1994) 6 号 p. 797-802

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Two atypical benign lymphoepithelial lesions in the parotid gland and cervical lymphadenopathy are reported. The nonhomogeneity of the tumor echogram and the swollen neck lymph nodes strongly suggested malignancy of the parotid gland. Pathological findings of the resected parotid lesions revealed atrophy of the glandular parenchyma and epimyoepithelial islands, diagnosed as “benign lymphoepithelial lesion”. The neck lymph nodes in case 1 were reactive hyperplastic lesions and in case 2 granulomatous and/or tuberculous lymphadenitis. No lymphoepithelial lesion was found in the neck lymph nodes. The relationship between the original parotid lesion and neck lymphadenopathy was not clear. Benign lymphoepithelial lesion could be approvable entity in some parotid masses even when accompanied by cervical lymphadenopathy.

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