Table 43 Causes and associations of onychogryphosis Dermatological

Psoriasis Revolution

Natural Psoriasis Cure and Treatment

Get Instant Access

Ichthyosis Psoriasis Onychomycosis Syphilis, pemphigus, variola Local causes

Isolated injury to the nail apparatus Repeated minor trauma caused by footwear Foot faults such as hallux valgus Regional causes Associated varicose veins Thrombophlebitis (even in the upper limb) Aneurysms Elephantiasis

Disease involving the peripheral nervous system General causes Old age

Vagrancy and senile dementia Disease involving the central nervous system Hyperuricaemia Idiopathic forms

Acquired or hereditary_

Figure 4.19

Subungual hyperkeratosis due to Trichophyton rubrum infection.

Figure 4.19

Subungual hyperkeratosis due to Trichophyton rubrum infection.

positive, homogeneous, rounded or oval, amorphous masses surrounded by normal squamous cells which are usually separated from each other by empty spaces caused by the fixation process. These clumps, which coalesce and enlarge, have been described in psoriasis of the nail, onychomycosis, eczema and alopecia areata, and also in some hyperkeratotic processes such as subungual warts and pincer nails. The horny excrescences of the nail bed are not very obvious, but the ridged structure may become apparent if the nail plate is cut and shortened.

Onychogryphosis

Figure 4.20

Subungual hyperkeratosis due to pityriasis rubra pilaris. (Courtesy of

Figure 4.20

Subungual hyperkeratosis due to pityriasis rubra pilaris. (Courtesy of

A text atlas of nail disorders 102 R. Caputo, Milan.)

A text atlas of nail disorders 102 R. Caputo, Milan.)

Figure 4.21

Hypertrophic, hard nail in pachyonychia congenita.

Figure 4.21

Hypertrophic, hard nail in pachyonychia congenita.

What Causes Pincer Nails

Figure 4.22

Pachyonychia congenita.

Was this article helpful?

0 0
Natural Treatments For Psoriasis

Natural Treatments For Psoriasis

Do You Suffer From the Itching and Scaling of Psoriasis? Or the Chronic Agony of Psoriatic Arthritis? If so you are not ALONE! A whopping three percent of the world’s populations suffer from either condition! An incredible 56 million working hours are lost every year by psoriasis sufferers according to the National Psoriasis Foundation.

Get My Free Ebook


Post a comment