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Monday, July 25, 2011

Cutaneous Skin Lesions -- Lesson 254

In this post we would learn some more lesions.
8. Scabies: - A parasitic, contagious infection of the skin with intense pruritus. Scabies is often spread through commonly affected and sexual contact, areas are the penis, groin, nipples and skin between the fingers. The treatment for this is topical medicated cream to destroy the scabies mites (tiny parasites).

9. Scleroderma: - A chronic progressive disease of the skin with hardening and shrinking of connective tissue. Fibrous scar tissue infiltrates the skin and heart, lungs, kidney, and esophagus may be affected as well. Skin is thickened, hard, and rigid, and pigmented patches may occur. Etiology is not known so much; palliative treatment consists of drugs, such as immunosuppressives and anti-inflammatory agents, and physical therapy.

10. Systemic lupus erythematosus (SLE): - This is the chronic inflammatory disease of collagen in the skin, of joints, and of internal organs. Lupus means wolf-like; physicians thought the shape and color of the skin lesions resembled the bite of a wolf and produces a characteristic ‘butterfly’ pattern of redness over the cheeks and nose. In most of the severe cases, the extent of erythema increases and all exposed areas of the skin may be involved. A disease of females which is primary  and this lupus is an autoimmune condition. High levels of antibodies are found in the patient’s blood. Corticosteroids and immunosuppressive drugs are used to control symptoms.  SLE should be differentiated from chronic discoid lupus erythematosus (DLE), which is a milder, scaling, plaque-like, superficial eruption of the skin confined to the face, scalp, ears, chest, arms, and back. The reddish patches heal and leave scars.

11. Tinea: - The infection of the skin which is caused by a fungus. Tinea or ringworm, because the infection is in a ring-like pattern, is highly contagious and causes severe pruritus. The examples are tinea pedis (athiete’s foot), which affects the skin between the toes, tinea capitis (ringworm of the scalp), and tinea barbace (ringworm of the skin under a beard). The treatment is with antifungal agents.

In the next post we will learn about Skin neoplasms Benign neoplasms.

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