Psoriasis is commonly misunderstood to be a disease exclusively of the skin due to its easily recognizable presentations. The abnormalities that characterize it do indeed point to a skin disorder; it is marked by scaly, raised, red patches on the genitalia, scalp, knees and elbows. However, psoriasis is the result of the immune system overworking and producing the excessive growth of silvery-white dead skin cells commonly referred to as scale. This buildup of cell patches forms unsightly, itchy and uncomfortable lesions. Further, the malfunctioning immune system associated with psoriasis can affect other organs as well.
Psoriatic arthritis (PsA) is a potentially debilitating condition that can result in the painful swelling of the joints, hands and feet. It can also lead to inflammation in body tissues, such as tendons and cartilage, eyes, heart, lungs and kidneys. The symptoms of psoriatic arthritis can vary in intensity and may change over time. Swelling of fingers is common, and fingernails and toenails may become pitted, thickened and discolored. Inflammation may attack the spine as well, making it hard for a patient to bend. Sometimes spondylitis, a condition associated with pain in the back or neck, can develop as a result of psoriatic arthritis. People with psoriatic arthritis may also experience tender spots in the back of the heel or the sole of the foot.
Copyright 2009 NBC Health
Click here to read the rest of the article at HealthVideo.com
