Onychauxis
Encyclopedia
Onychauxis presents with thickened nails without deformity, and this simple thickening may be the result of trauma, acromegaly
, Darier's disease
, psoriasis
, or pityriasis rubra pilaris
, or, in some cases, hereditary.
Acromegaly
Acromegaly is a syndrome that results when the anterior pituitary gland produces excess growth hormone after epiphyseal plate closure at puberty...
, Darier's disease
Darier's disease
Darier's disease , also known as Darier disease, Darier–White disease, Dyskeratosis follicularis and Keratosis follicularis, is an autosomal dominant disorder discovered by French dermatologist Ferdinand-Jean Darier. Darier's is characterized by dark crusty patches on the skin, sometimes containing...
, psoriasis
Psoriasis
Psoriasis is an autoimmune disease that appears on the skin. It occurs when the immune system mistakes the skin cells as a pathogen, and sends out faulty signals that speed up the growth cycle of skin cells. Psoriasis is not contagious. However, psoriasis has been linked to an increased risk of...
, or pityriasis rubra pilaris
Pityriasis rubra pilaris
Pityriasis rubra pilaris refers to a group of chronic disorders characterized by reddish orange, scaling plaques and keratotic follicular papules...
, or, in some cases, hereditary.