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InsightHorizon Digest

What is an example of a secondary lesion

Author

Emma Miller

Updated on April 09, 2026

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. Usually silver, white, or tan, they can be thick, thin, dry, or oily.

What are the secondary lesions?

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 3 types of lesions?

They tend to be divided into three types of groups: Skin lesions formed by fluid within the skin layers, such as vesicles or pustules. Skin lesions that are solid, palpable masses, such as nodules or tumors. Flat, non-palpable skin lesions like patches and macules.

What are the 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 an example of a lesion?

Freckles and flat moles are examples of macule skin lesions. Nodules refer to “knot” like growths of abnormal tissue that develop under the skin. For instance, lymph nodes can develop nodules that are visible from the surface of the skin upon inspection.

Is a bulla a secondary lesion?

Primary lesions are those lesions that arise de novo and are therefore the most characteristic of the desease process. Bulla: a circumscribed, elevated fluid-filled lesion greater than 1 cm in size (e.g. epidermolysis bullosa, bullous impetigo).

Which of the following is an example of a secondary skin lesion Milady?

Examples include hives and mosquito bites. Secondary skin lesions are characterized by piles of material on the skin surface, such as a crust or scab, or by depressions in the skin surface, such as an ulcer (Figure 8–5).

What are the two types of lesions?

Two categories of skin lesions exist: primary and secondary. Primary skin lesions are abnormal skin conditions present at birth or acquired over a person’s lifetime. Secondary skin lesions are the result of irritated or manipulated primary skin lesions.

Is shingles a primary or secondary lesion?

Secondary lesions occur when a primary lesion changes as a result of being manipulated, treated, or in relation to the progression of any underlying condition or infectious process, such as candidiasis, herpes zoster, herpes simplex or impetigo.

What are examples of primary lesions?
  • Vesicles, bullae, and pustules are formed by fluid within skin layers.
  • Nodules, tumors, papules, wheals, and plaques are palpable, elevated, solid masses.
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What are pontine lesions?

Neurology. A lateral pontine syndrome is a lesion which is similar to the lateral medullary syndrome, but because it occurs in the pons, it also involves the cranial nerve nuclei of the pons.

What are the 6 primary skin lesions?

  • Macule.
  • Papule.
  • Nodule.
  • Tumor.
  • Plaque.
  • Vesicle.
  • Bullae.
  • Pustule.

What are linear lesions?

They vary in cause; being congenital or acquired; vary in morphology and can present as macules, papules, patches, plaques, vesicles or nodules; they can be inflammatory or non inflammatory; it can be a single lesion which is linear or multiple lesions which are arranged in a linear pattern.

Is a mole a skin lesion?

There are several skin lesions that are very common and benign (non-cancerous). These conditions include moles, freckles, skin tags, benign lentigines, and seborrheic keratoses.

What do MS lesions look like?

Typical MS lesions tend to be oval or frame shaped. MS lesions can appear in both the brain’s white and gray matter. Healthcare professionals may use a chemical contrast dye called gadolinium to improve the brightness of MRI scan images. To use this dye, they inject it into a person’s vein just before the scan starts.

What is a legion medical?

Specialty. Pathology. A lesion is any damage or abnormal change in the tissue of an organism, usually caused by disease or trauma.

Which of the following is an example of a secondary skin?

Examples of secondary skin lesions are scales, crusts, excoriations, erosions, ulcers, fissures, scars, and keloids.

What type of lesions are depressions in the skin?

Anetoderma is an uncommon condition in which the elastic tissue in the dermis is lost, resulting in a depression in the skin.

Which of the following is an example of Macules?

Macules: Macules are flat skin lesions. They are small (less than one centimeter in diameter) and may be brownish or reddish. Freckles and flat moles are examples of macules. A macular rash is commonly seen in measles.

What is an indurated lesion?

Induration, or deep thickening of the skin, can result from edema, inflammation, or infiltration, including by cancer. Indurated skin has a hard, resistant feeling. Induration is characteristic of panniculitis. Diagnosis is by clinical evaluation and biopsy.

What type of lesion is a vesicle?

A vesicle, also known as a blister or a vesicular lesion, forms when fluid becomes trapped under the epidermis, creating a bubble-like sac. The surrounding skin keeps fluid in place, but the vesicle can break open very easily and release the fluid.

Are freckles primary lesion?

Common examples of primary skin lesions include freckles, moles, and blisters, among others. On the other hand, secondary skin lesions develop from the evolution of a primary skin lesion, either due to traumatic manipulation, such as scratching or rubbing, or due to its treatment or progression.

What is Foville syndrome?

Foville’s syndrome, also known as Defoville’s syndrome, was first described by the French anatomist and psychiatrist Achille-Louis François Foville (1831–1887) in 1858.1, 2, 3 It is characterized by ipsilateral sixth nerve palsy, facial palsy, facial hypoesthesia, peripheral deafness, Horner’s syndrome and

What does Leukoaraiosis mean?

Background— Leukoaraiosis, a term that defines an abnormal appearance of the subcortical white matter of the brain on neuroimaging (bilateral patchy or diffuse areas of low attenuation on CT or hyperintense T2 MR areas), has gained evidence in retrospective studies to demonstrate its association with stroke and in …

What is PON anatomy?

pons, portion of the brainstem lying above the medulla oblongata and below the cerebellum and the cavity of the fourth ventricle. The pons is a broad horseshoe-shaped mass of transverse nerve fibres that connect the medulla with the cerebellum.

What is a target lesion?

What is a target lesion? A target lesion is a round skin lesion with three concentric colour zones: A darker centre with a blister or crust. A ring around this that is paler pink and raised due to oedema (fluid swelling) A bright red outermost ring.

What is a polycyclic lesion?

Polycyclic lesions present as configurations arranged in more than one ring. Some annular lesions may coalesce into a polycyclic shape; alternatively, the appearance of such lesions may be independent. For example, the annular lesions of tinea corporis can combine to create a polycyclic lesion.

What is a Verrucous skin lesion?

Verrucous papules are bumpy warts that appear on the skin due to infection with certain types of human papillomavirus (HPV).

Is a nevus a mole?

Most people continue to develop new moles until about age 40. In older people, common moles tend to fade away. Another name for a mole is a nevus. The plural is nevi.

Are nevus raised?

Nearly everyone has at least one mole — the medical term is “nevus” — a flat or raised colored spot on the skin. These spots (“nevi”) are created when skin pigment cells called melanocytes assemble into clusters.

Is a nevus a papule?

Nevi are common benign growths, usually hyperpigmented or skin-colored macules, papules, or small plaques, probably derived from proliferating altered melanocytes (nevus cells).