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Pronunciation: pak'e-der'mo-per'e-os-to'sis

Definition: A syndrome of clubbing of the digits, periosteal new bone formation, especially over the distal ends of the long bones (idiopathic hypertrophic osteoarthropathy), and coarsening of the facial features with thickening, furrowing, and oiliness of the skin of the face and forehead (cutis verticis gyrata); there is seborrheic hyperplasia with open sebaceous pores filled with plugs of sebum; often of autosomal dominant inheritance, usually more severe in males.

Synonym(s): acropachyderma

[pachy- + G. derma, skin, + periostosis]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.