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Monday, July 18, 2011

Cutaneous Skin Lesions -- Lesson 253

In this post we will learn in further
2. Burns: - Injury to tissues caused by contact of heart. The examples are dry heat (fire), moist heat (steam or liquid), chemicals, electricity, radiation or lightning. These burns are classified into three types.
First-degree burns: - These burns are superficial epidermal lesions, erythema, blisters, and hyperesthesis are the first-degree burns examples. Sunburn is an example of this type of burns.
Second-degree burns: - These burns are epidermal and dermal lesions, erythema, blisters and hyperesthesia.
Third-degree burns: - These burns of which epidermis and dermis are destroyed (necrosis of skin), and subcutaneous layer is damaged leaving charged while tissue.

3. Eczema: - The skin disease of inflammatory with erythematous, papulovesicular lesions. This chronic or acute dermatitis is often accompanied by pruritus and may occur without any obvious cause. It is a common allergic reaction in children and also occurs in adults. Allergy may be to foods, dust, or pollens. Treatment depends on the cause but usually includes the use of corticosteroids.

4. Exanthematous viral diseases: - Due to a viral infection rash (exanthema) of the skin. For this examples are rubella (German measles), rubeola (measles), and varicella (chickenpox).

5. Gangrene: - With the loss of blood supply, association of death of tissue. In this condition, ischemia resulting from injury, inflammation, frost bite diseases such as diabetes, or arteriosclerosis can lead to necrosis of tissue followed by bacterial invasion and putrefaction (proteins are decomposed by bacteria).

6. Impetigo: - Bacterial inflammatory skin disease which was characterized by vesicles, pustules, and crusted-over lesions. This is a contagious pyoderma in which py/o means pus and is usually caused by staphylococci or streptococci. Systemic use of antibiotics and proper cleaning of lesions are effective treatments.

7. Psoriasis: - Chronic, recurrent dermatosis marked by itchy, scaly, red patches covered by silgery gray scales. This commonly forms on the forearms, knees, legs and scalp. It s neither infectious nor contagious.

In the next post we would learn remaining lesions.

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