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Pathol Int. 1994 Jan;44(1):80-3.

Mixed tumor of the external auditory canal.

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  • 1Department of Pathology, School of Medicine, Tokai University, Isehara, Japan.


A mixed tumor with apocrine differentiation seen in the external auditory canal of a 39 year old male is reported. The well demarcated polypoid tumor showed proliferation of elongated gland-like or duct-like structures lined by two rows of epithelial cells, occasionally accompanied by foci of keratinization. There were fat cells in the myxoid stroma, in which no chondroid elements were seen. This neoplasm is considered to have arisen from the ceruminous gland, the modified apocrine gland of the skin.

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