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  • Title: Membranous basal cell adenoma of parotid gland, dermal cylindromas, and trichoepitheliomas. Comparative histochemistry and ultrastructure.
    Author: Headington JT, Batsakis JG, Beals TF, Campbell TE, Simmons JL, Stone WD.
    Journal: Cancer; 1977 Jun; 39(6):2460-9. PubMed ID: 194666.
    Abstract:
    A basal cell adenoma of parotid, eccrine dermal cylindromas and trichoepitheliomas occurring in the same patient were examined by light and electron microscopy and histochemistry. The eccrine and parotid adenomas were similar both structurally and histochemically except for the presence of Langerhans cells in the cutaneous adenoma and well differentiated mucinous cells in the parotid tumor. The three different hamartomas found in this individual may represent the effect of a single pleiotropic gene acting on ontogenetically related stem cells.
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