Types of Primary Skin Lesions

johncris By johncris, 28th Aug 2010 | Follow this author | RSS Feed | Short URL http://nut.bz/1d5ptx5h/
Posted in Wikinut>Health>General Health>Diseases & Infections

Skin lesion is an alteration in the integumentary system or skin. There are in two forms, the primary skin lesion and secondary skin lesion. Primary skin lesions are initially appears in reaction to external or internal environment.

Types of Primary Skin Lesions

The following are the primary skin lesions:

Skin lesion is an alteration in the integumentary system or skin. There are in two forms, the primary skin lesion and secondary skin lesion. Primary skin lesions are initially appears in reaction to external or internal environment.

Macule

The lesion appears circular small and flat spot that is less than in (1 mm to 1 cm) in diameter and with the color not the same as that of nearby skin. It has in different shapes usually red, brown, and white. Flat moles, measles, petechiae and freckles are the examples of macule. Macule that is more than in (1 cm) in diameter is called a patch; it has an irregular in shape.

Vesicle

A raised lesion that is less than in (0.5 cm) across. Lesions are round or oval in shape with thin mass filled with serous blood or clear fluid. Herpes simplex, burn blister and early chicken pox are examples of vesicle. Bullae are another example of vesicle that is more than in (5 mm) across. Lesions are cause by chemical burn, exposure to sunlight, insect bites or viral infection.

Pustule

A raised vesicle or bulla lesion filled with pus. Infection is the primary cause. Acne vulgaris, impetigo and boils are examples.

Papule

A solid elevated skin lesion less than in (1 cm) across. Lesions are rough in texture and usually color pink, red and brown. This lesion is associated with psoriasis, skin cancer, actinic keratosis, and syphilis. Warts, acne, pimples and elevated moles are examples.

Nodule

A solid elevated lesion that has edges and area 0.5 to 2 cm. Physician describes this as "palpable," where hard mass is felt from the tissue surrounding it. The size of the nodule is more than 2 cm in diameter. The other term is tumor which is associated with lipomas, and keratinous. malignant melanoma and hemangioma are examples.

Wheal

A red swelling skin itchy lesion and localized edema. Lesion is usually cause by an allergic reaction, insect bites or reaction from drugs. Hives, urticaria and mosquito bites are examples.

Telanglectasia

A dilated small blood vessels in the surface of the skin. It is often manifestation of certain diseases such scleroderma or rosacea.

Plaque

A patch of closely grouped papules more than in (1 cm) across. Lesions are rough in texture and color brown, red, or pink. The size is larger than 1 cm. Rubeola and psoriasis are examples.

Cyst

Elevated skin lesion and encapsulated filled with fluid. The size is 1 cm or larger. Epidermoid and sebaceous cyst and chalazion of the eyelid or meibomian gland lipogranuloma are examples.

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Comments

author avatar Jerry Walch
28th Aug 2010 (#)

A very good overview and introduction to the subject of lesions.

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author avatar Denise O
3rd Sep 2010 (#)

I have never heard of some of these lesions. How so many must suffer from it all...how sad. Thank you for bringing this to the forefront.

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author avatar krrymarie
30th Sep 2010 (#)

cool! article most of what you have said is Psoriasis! Pulster ect.

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author avatar LOVERME
30th Sep 2010 (#)

i know for certain
skin problems can never be cured
come what may
a small fungus or bacteria remaining
will refurbish itself.

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author avatar Dr mohammad arshad
25th Mar 2012 (#)

the excellent presentation

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author avatar Lovelysingh
15th Sep 2012 (#)

ganda pure da pua

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author avatar Bereket
12th Oct 2012 (#)

all is good keep it up!!!

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