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Hair disk

Hair disk refers to the specialized spot of epidermis characterized as a small round disk around a hair follicle. It is comprised of a thickened layer of epithelial cells and Merkel cell – neurite complexes. It has a peculiar neurophysiologic feature for being a slow-adapting mechanoreceptor. Variant: hair disc. Synonym: haarscheibe.


  1. Pinkus, H., Coskey, R., & Burgess, G. H. (1974). Trichodiscoma. A benign tumor related to haarscheibe (hair disk). J Invest Dermatol. 63(2):212-8.

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