Skin, hair, and nails Flashcards
Epidermis
Avascular
Dermis
inner
made up of collagen
Subcutaneous tissue
Adipose
thermo-regulation and protection
vellus hair
covers the majority of the body
fine/ faint
Terminal hair
thick hair covering scalp/ eyebrows
Sebaceous glands
assist in prevention of water loss from skin
Sweat glands
Eccrine & Apocrine
Eccrine sweat gland
sweat/ dilute saline
Apocrine sweat gland
body odor, secrete fluid & open at hair follicle
Nails
plates of keratin
- longitudinal ridges
- pink bc of vascular epithelium below
Lunula
white semi-lunar, opaque area of proximal aspect of the nail
Cuticle
covering of the nail matrix
skin function
protection
sensation
thermo reg
absorption
Skin tear
superficial
Laceration
deep, requires stitches
Senile Purpura
so-called areas of dark red discoloration
associated with minor trauma in the elderly
Older adults skin related changes
decreased:
elasticity
hydration
secretions
thermo reg
what SPF to prevent skin cancer?
30
Pruritis
itching
Alopecia
impressive amount of hair loss
- genetics
- meds
Hirsutism
excessive hair
- PCOS
- Tumors
Jaundice
yellow skin & sclera appearance
jaundice is caused by ..
bilirubin build up
pathologic causes of jaundice
hepatic disease: cirrhosis, hepatitis
jaundice is a normal finding in…
new borns
Normal nevus appearance
tan- brown larger than back of a pencil eraser cap
ABCDEF !!!
Asymmetry
Boarder irregularity
Color variation
Diameter (6mm +)
Elevation
Funny looking
Duckling sign
sign for melanoma
- most regular moles all look similar to one another melanoma is the “ugly duckling”
Raynaud’s syndrome
hyperthermia associated with hyperthyroidism
Diaphoresis
Excessive sweating
- cool/ clammy
what is diaphoresis associated with
pain
anxiety
MI
Anasarca
Generalized edema/ swelling
Scleroderma
“hard skin” associated with chronic connective tissue disorder
Cherry angiomas
bright red colored dots slightly raised and smooth
- normal finding age 30+
Contusion
bruise
Papule
lesion that can be felt
superficial/ thick
Wart/ Verruca
Patch
macule within 1cm+
- vitiligo
Macule
flat circumscribed less than 1cm strictly a color change
Nodule
greater than 1cm +, solid elevated. Extend deeper.
Xanthoma
Wheal
irregularly shaped, edema, superficial, transparent, red and raised
-mosquito bite
Plaque
papule with a surface elevation greater than 1 cm+ in width
- psoriasis
Tumor
a few cm+, soft or form, benign or malignant
Urticaria
hives, pruritic reaction.
Wheals coming together
Bulla
cavity of free fluid 1cm+ rupture with ease
- Burn/ contact dermatitis
Vesicle
cavity of free fluid up to 1 cm or less
- blister
Cyst
fluid-filled cavity enclosed capsule within dermis or Sub Q
Pustule
cavity containing pus that is elevated and circumscribed
pus
turbid fluid
Secondary lesions
evolution of primary lesions over a period of time with a resultant change
Ulcer
depression, irregular in shape. potential bleeding and can leave a scar
Keloid
excess scar tissue outside original injury cite
Excoriation
superficial abrasion
- scratch from impressive amount of itching
- insect bite
Scar
repaired skin lesion with loss of normal tissue and collagen replacement
How many stages of pressure injures are there?
5
stage 1 pressure injury
non- blanchable erythema
- skin intact
stage 2 pressure injury
partial- thickness, skin loss
- no visible fat/ deep tissue
stage 3 pressure injury
full-thickness, skin loss
- in sub Q, fat/ granulation exposed
stage 4 pressure injury
full-thickness skin/ tissue loss
- slough
- eschar
- tunneling
- all skin layers involved
stage 5 pressure injury
unstageable
Profile sign
Nail clubbing
- congenital heart disease, pulmonary patho, lung cancer
capillary refill
good: brisk 1-2 sec
bad: sluggish 3+ seconds
Lentigines (senile)
“liver spots”
older adults
not malignant needs no treatment
Keratoses
raises areas of pigmentation that appear crusty, scaly, or so-called warty
Seborrheic keratosis
“stuck on” appearance
NOT associated with cancer
Actinic keratosis
reptile-like, red/tan & scaley
-plaques , elevated with rough edges
what is actinic keratosis associated with
sun exposure
Pre- malignant –> squamous cell carcinoma
Skin tags/ acrochordons
normal skin overgrowth
polyp like