2025年2月4日 · Skin lesions refer to any skin area that presents different characteristics—including color, shape, size, and texture—from the surrounding skin. Skin lesions can be hereditary, such as moles or birthmarks, or acquired as a result of allergic reactions , medications, sun exposure, and systemic diseases, such as autoimmune diseases, some ...

Scales are accumulations of thickened skin on the surface, which become dry and flaky and sometimes peel off. Crusts are dry exudates, which is the liquid that leaks out of blood vessels, containing cells, sebum, pus, or blood. Now, lesions can appear in groups and form a rash, which includes any skin eruption.

2025年2月4日 · Lichenification is a secondary skin lesion that is characterized by hyperpigmentation, thickening of the skin and exaggerated skin lines. These skin lesions usually appear from constant scratching or rubbing in areas, such as the elbows. Usually the lesion begins with hyperpigmentation, or the darkening of a patch of skin.

Benign skin lesions are often diagnosed clinically. However, dermatologists may use other methods to help diagnose skin lesions. One tool is dermoscopy , which is a skin surface microscope that helps differentiate benign lesions from dysplastic and malignant lesions.

2025年1月6日 · Papulosquamous disorders are skin lesions characterized by well-demarcated, red or purple papules and plaques with scales. Examples include psoriasis, lichen planus, pityriasis rosea, pityriasis lichenoides, and seborrheic dermatitis. Causes range from autoimmune to viral etiologies, and treatment may include topical corticosteroids and ...

2025年2月4日 · Pustules are small lesions on the skin filled with pus. They are easily identified upon physical examination as red bumps with white or yellowish centers. If severe, they may be accompanied by additional signs and symptoms surrounding the lesion, such as pain, tenderness, swelling, soreness, and warmth.

2025年1月6日 · In cases where the diagnosis is uncertain, a skin biopsy of the lesions can be helpful to confirm the diagnosis or rule out other skin conditions. How is a COVID rash treated? Treatment of skin manifestations associated with COVID-19 is primarily based on the symptoms and may involve topical corticosteroids and oral antihistamine medications ...

2025年2月4日 · Precancerous skin consists of several changes to the DNA of skin cells that can potentially lead to skin cancer. It can arise from personal characteristics, exposure to UV rays, certain viral infections, and some genetic conditions. Precancerous skin lesions can often vary in presentation, while some are not visible at all. These lesions often ...

2025年1月6日 · Lichen simplex chronicus refers to a skin condition caused by repeated scratching of persistently itchy skin. Over time, the chronic scratching and rubbing leads to dry, thickened, scaly skin lesions that may appear darker than surrounding skin and inflamed.

Skin and soft tissue lesions are dermatological abnormalities that look different from the surrounding skin in terms of color, size, or texture. Most skin and soft tissue lesions are benign. However, some can be malignant or premalignant , so it's important to have a high clinical suspicion for any patient presenting with a new lesion.