What Are The Primary Lesions?

What are examples of primary lesions?

Primary LesionsVesicle: a fluid-filled blister which is less than 5mm in diameter, elevated above the level of the skin with well demarcated borders.Bulla: a large vesicle (greater than 5 mm in diameter)Pustule: a pustule is similar in appearance to a vesicle or bulla, but contains purulent material.More items…•.

What are the 3 types of lesions?

Types of primary skin lesionsBlisters. Small blisters are also called vesicles. … Macule. Examples of macules are freckles and flat moles. … Nodule. This is a solid, raised skin lesion. … Papule. A papule is a raised lesion, and most papules develop with many other papules. … Pustule. … Rash. … Wheals.

Are Macules freckles?

Definition. A freckle (ephelis) is a brown macule found in sun-exposed areas of the skin (Fig. 6.1). The amount of melanin in the basal area of the epidermis is increased, with no increase in the number of melanocytes.

What’s the difference between a lesion and a tumor?

For example, a bull’s-eye or target lesion is one that looks like the bull’s eye on a target. (In an X-ray of the duodenum, a bull’s-eye lesion can represent a tumor with an ulcer (crater) in the center.) A coin lesion is a round shadow resembling a coin on a chest X-ray. It, too, is usually due to a tumor.

What is a papule skin lesion?

A papule is a raised area of skin tissue that’s less than 1 centimeter around. A papule can have distinct or indistinct borders. It can appear in a variety of shapes, colors, and sizes. It’s not a diagnosis or disease. Papules are often called skin lesions, which are essentially changes in your skin’s color or texture.

What is a primary and secondary lesion?

Definitions of Primary and Secondary Lesions Primary skin lesions are those which develop as a direct result of the disease process. Secondary lesions are those which evolve from primary lesions or develop as a consequence of the patient’s activities.

What is a secondary lesion?

Secondary lesions are those lesions that are characteristically brought about by modification of the primary lesion either by the individual with the lesion or through the natural evolution of the lesion in the environment.

What are the characteristics of secondary skin lesions?

* Scale-heaped-up keratinized cells; flakey exfoliation; irregular; thick or thin; dry or oily; variable size; can be white or tan.

What is a tertiary lesion?

Tertiary (ie, late) lesions are caused by obliterative small vessel endarteritis, which usually involves the vasa vasorum of the CNS. Factors that determine the development and progression of tertiary disease are not known.

What is an example of a papule?

Papules are elevated lesions usually < 10 mm in diameter that can be felt or palpated. Examples include nevi, warts, lichen planus, insect bites, seborrheic keratoses, actinic keratoses, some lesions of acne, and skin cancers.

What is a characteristic of primary lesions?

Primary lesions are those lesions that arise de novo and are therefore the most characteristic of the desease process. … Macule: a circumscribed, flat lesion with color change up to 1 cm in size that is not palpable (e.g. ash leaf macules, café au lait macules).

What is the difference between Macule and Papule?

Reasoning through the first blush A macule is a flat lesion smaller than 1 cm and a patch is a flat lesion larger than 1 cm. Elevated lesions are either solid or fluid-filled. Solid lesions can be described as either a papule, plaque, nodule, or wheal.

What do lesions look like?

Skin lesions are areas of skin that look different from the surrounding area. They are often bumps or patches, and many issues can cause them. The American Society for Dermatologic Surgery describe a skin lesion as an abnormal lump, bump, ulcer, sore, or colored area of the skin.

What do precancerous skin lesions look like?

This nonmelanoma skin cancer may appear as a firm red nodule, a scaly growth that bleeds or develops a crust, or a sore that doesn’t heal. It most often occurs on the nose, forehead, ears, lower lip, hands, and other sun-exposed areas of the body.

How do you treat papules?

Treating papulesRetinoid (and retinoid-like) drugs. Retinoids include adapalene (Differin), tretinoin (Retin-A), and tazarotene (Tazorac).Antibiotics. Topical antibiotics can kill excess bacteria on the skin and reduce redness.

Is a papule a primary lesion?

Primary lesions (e.g., macules or papules) appear as a direct result of a disease process. Secondary lesions such as scales or ulcers may develop from primary lesions or result from external trauma (e.g., infections, scratching).

What is an example of a secondary lesion?

Examples of secondary skin lesions are scales, crusts, excoriations, erosions, ulcers, fissures, scars, and keloids. Scales, which are shed dead keratinized cells, occur with psoriasis and eczema. They’re irregular, flaky, and variable in size. … An example of this type of lesion occurs with varicella.

Is erosion a primary lesion?

Primary lesions Epidermal collarette, scar, excoriation, erosion, ulcer, fissure, lichenification, hyperpigmentation, callus.