<unk>  is a localized or diffuse hyperkeratotic tissue that develops on the lateral or proximal nailfolds, within the space between the nailfolds and the nail plate, and is a common finding in the elderly.<unk>  may involve the subungual area, as a direct result of repeated minor trauma, and most frequently affects the first and fifth toes.
Onychophosis
Onychogryphosis
Hypertrichosis cubiti
Xanthelasma
Koilonychia
Platonychia
Auricular hypertrichosis
Sparganosis