Resumo

PASTOR FORTEA, M.J. et al. Basal cell adenoma of the parotid: A revision based on four cases. Rev Esp Cirug Oral y Maxilofac [online]. 2005, vol.27, n.2, pp.85-92. ISSN 2173-9161.

The basal cell adenoma is a specific type of adenoma, with a uniform, monomorphous histologic appearance that is dominated by basaloid cells and that does not have the myxochondroid tissue characteristic of mixed tumors. It may be divided on the basis of its morphologic pattern into four subtypes: solid, tubular, trabecular and membranous. We report four cases of basal cell adenoma subdivided as follows: one solid, one trabecular and two membranous subtypes. In all cases a conservative superficial parotidectomy was the treatment. Morphologic identification of the specific subtype is for descriptive purposes, except in the case of the membranous type, due to its tendency to be multifocal, its high recurrence rate, its occasional malignant transformation and its possible association in about onethird of the reported cases with dermal cylindromas. A close followup and screening of skin lesions is suggested for these tumors.

Palavras-chave : Basal; Membranous; Multifocal; Relapse; Eccrine.

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