Currently under construction.

Arm Abrasion, bout 20 hours after this patient fell on concrete.
Calcinosis cutis of a dog, showing the prominent changes on the animals skin.
The common callus.

Raynaud's disease or phenomenon, is when hands become suddenly painfully cold due to exposure to cold or other agents. The fingers loose their circulation, and become white and painful, as seen in this picture. This phenomenon is usually found in patients with scleroderma and other autoimmune diseases.

Capillary hemangioma, which is an abnormal growth of blood vessels in the skin, is prominent in newborns and infants, but tends to regress with time.

Kaposi's sarcoma, a cancer mainly of the mouth by a herpes virus, seen mainly in immunocompromised people, such as in AIDS.

Pxvirus infection of the skin, mainly in the hands and arms of children, known as molluscum. These are easily removed with a small blade or scraper.
Same as above, but showing how this poxvirus can easily spread to other areas if not treated immediately.
Common hand and finger warts, caused by human papilloma virus. Treatment is diverse and can be for a longtime due to the resistance of the virus.

A chemical burn that a patient suffered on their hands.

Dermatotillomania, which is a psychiatry disorder, in which the patient continously picks at their skin, causing damage and distortion of the tissue.