<unk> , or<unk> a, is the thickening of skin like that of a<unk> (a tough-skinned animal such as an elephant, rhinoceros, tapir or hippopotamus). It occurs in the condition<unk> periostosis, an X-linked genetic disorder. It can also occur in acromegaly, elephantiasis, and podoconiosis. The adjective<unk> tous is used to describe skin showing symptoms of this condition.
Pachyderma
Erythroderma
Exudative hyponychial dermatitis
Erythrasma
Onychogryphosis
Onychophosis
Hypertrichosis cubiti
Granulomatous facial dermatitis