keratopachyderma

ker·a·to·pach·y·der·ma

(ker'ă-tō-pak'i-der'mă),
A syndrome of congenital deafness with development of hyperkeratosis of the skin of the palms, soles, elbows, and knees in childhood, and with bandlike constrictions of the fingers.
[kerato- + G. pachys, thick, + derma, skin]