Quick Answer: Is A Nevus A Macule?

What is a Macule?


Macule: Macules are circumscribed alterations in skin color.

The skin surface is neither.

elevated or depressed in relation to the surrounding skin..

Can a normal mole be crusty?

Surface — A mole’s surface changes from smooth to scaly, eroding and oozing. A crusty, ulcerated or bleeding mole is a sign of advanced disease.

What causes a nevus?

Most epidermal nevus syndromes are thought to be caused by a gene mutation that occurs after fertilization of the embryo (postzygotic mutation), at an early stage of embryonic development. Affected individuals have some cells with a normal copy of this gene and some cells with the abnormal gene (mosaic pattern).

What does nevus look like?

They are irregularly shaped, with uneven borders that may fade into the skin around the mole. They contain more than one color, including a mixture of brown, black, tan, pink, and white. Their surface may be smooth, rough, scaly, or bumpy.

What is smaller than a nodule?

Smaller (less than 0.5 cm) elevated soft tissue lesions may be termed papules.

Is a mole a Macule?

(Melanocytic Nevi) Moles are flesh- to brown-colored macules, papules, or nodules composed of nests of melanocytes or nevus cells. Their main significance (other than cosmetic) is their resemblance to melanoma.

Is a nevus dangerous?

Most congenital nevi usually do not cause health problems, but a small percentage may develop into skin cancer (melanoma) later in life. The risk of melanoma increases with the size of the nevus.

What is an example of a Macule?

A patch is a large macule. Examples include freckles, flat moles, tattoos, and port-wine stains, and the rashes of rickettsial infections, rubella, measles (can also have papules and plaques), and some allergic drug eruptions.

What is larger than a Macule?

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 is a wheal on the skin?

Wheal: A raised, itchy (pruritic) area of skin that is sometimes an overt sign of allergy. Not all wheals are alike. They may be redder or paler than the skin around them.

Is a nevus benign?

A melanocytic naevus (American spelling ‘nevus’), or mole, is a common benign skin lesion due to a local proliferation of pigment cells (melanocytes). It is sometimes called a naevocytic naevus or just ‘naevus’ (but note that there are other types of naevi).

Do Macules go away?

Your macules may not go away, but treating the condition that’s causing them may help prevent further growth of the macules you have. It may also prevent the formation of new macules.

Can a nevus appear suddenly?

Moles, or nevi, typically form during childhood and adolescence, but new moles can appear in adulthood. Although most moles are noncancerous, or benign, the development of a new mole or sudden changes to existing moles in an adult can be a sign of melanoma. Melanoma is a type of skin cancer.

What are Brown Macules?

Ephelides are small, 1- to 2-mm macules that appear around age 2 years, and these red- to light brown-colored spots increase in pigmentation with increased sun exposure.

Do oral Melanotic Macules go away?

Most dark spots on the lips or inside the mouth are benign oral melanotic macules. Usually, your doctor will observe the lesion by measuring it, by taking a photograph of it, or both. As long as the oral melanotic macule stays stable in size, shape, and color, no treatment is needed.