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Skin Conditions-APN

Anatomy of the skin,skin lesions , benign skin conditions

Epidermis no blood vessels;gets nourishment from the dermis.
Epidermis- top layer consist of keratinized cells(dead squamous cells)
Epidermis-bottom layer where melanocytes reside and vitamin D synthesis occurs.
Dermis blood vessels, sebaceous glands, and hair follicles.
Subcutaneous layer fat, sweat glands,and hair follicles.
What is a bulla? elevated superficial blister filled with serous fluid and greater than 1 cmin size.
What is an example of a bulla? second degree burns
What is a vesicle? elevated superficial skin lesion less than 1 cm in diameter and filled with serous fluid.
What is an example of a vesicle? herpetic lesions
What is a pustle? elevated superfical skin lesion smaller than 1 cm in diameter filled with purulent fluid.
What is an example of a pustle? acne pustles
What is a macule? a flat nonpalpable lesion smaller than 1 cm in diamter.
What is an example of a macule? freckles or lentigines
What is a papule? a palpable solid lesion up to a 0.5 cm. an example (acne).
What is a plaque? a flattened elevated lesions with variable shape that are more than 1 cm in diamter; examle psoriatic lesions.
What is a Lipoma? A benign fatty, cystic tumors in the subcuataneous layer of the skin.
What is the shape and loaction of a lipoma? Round shape to oval shape. Located mostly on neck, trunk, legs and arms; painless unless rupture.
What is Melasma? The mask of pregnancy; in women who are pregnant or on oral contraceptives.
What is the characterics and location of a melama? Brown stains on the upper cheeks and forhead. COmmon in darkskinned women; stains permanent, but becomes lighter over time.
What is a Nevi(moles)? Round macules to papules(junctional nevi) ranging in colors. Borders are distinct to irregular.
What type of Nevi put a paitient at higher risk for melanoma? Atypical nevi
What is Seborrheic Keratoses? Soft and round wartlike fleshy growths
What are the characteristics and location of Sebortheic Keratoses? Mostly on the back, range in color(light to tan to black), onset after 50 years of age,painless unless irritated.
What is Vitiligo? Hypopigmented patches of skin with irregular shapes, more visible on darker skins.
What is Xanthelasma? A raised yellow soft plaques located on the brow onthe upper or lower lids of eye on the nasal side.
What disorder is associated with a Xanthelasma? May be a sign of hyperlipidemia if present in persons younger that 40 years old.
What is Xerosis? An Inherited skin disorder resulting in extremely dry skin.
What is Xerostomia? involves mucosal surfaces of the mouth.
What is Xerophthalmia? Involves mucosal surfaces of the conjunctiva of the eye.
Created by: gmcghee