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Skin Lesions

Boisvert - WVSOM

QuestionAnswer
What are Mees's Bands White lines in nails due to acute illness
What are Lindsay's Nails? proximal half white, distal half pink
What is an often cause of Lindsay's Nails? Renal/ azotemia
What are Terry's Nails? White except for distal tip
What disease is often associated with Terry's Nails? Cirrhosis
What disease is often seen with pitting of the nails? Psoriasis
What is tinea capitis? fungal infection (dermatophyte) of scalp
What is trihotillomania? Pulling out and breaking off hair
Macule flat, less than 1 cm (non-palpable)
Patch flat, greater than 1 cm (non-palpable)
Papule solid, raised, less than 1 cm(palpable)
Nodule solid, raised, 1-2cm (palpable)
Tumor solid, raised, greater than 2 cm (palpable)
Plaque raised, surface area large in relation to height, greater than 1 cm (palpable - solid)
Wheal raised, leakage fluid into dermis (palpable - solid)
Vesicle fluid filled, raised, less than 1 cm (palpable - transillumination)
Bulla fluid filled, raised, greater than 1 cm (palpable - transillumination)
Pustule raised, less than 1 cm, filled with purulent fluid (palpable - transillumination)
Comedo Plug of sebum and keratin in the opening of a hair follicle Opening dilated - blackhead Opening closed - whitehead
Burrow a channel under the skin produced by a parasite
Cyst raised, encapulated, in dermis or subcutaneous, liquid filled or semi-solid
Abscess acuumulation of purulent material in the dermis or subcutaneous
Furuncle necrotizing form of inflammation of a hair follicle
Carbuncle coalescence of several furuncles
Milia keratin filled cysts in distal sweat gland
Erythema pink/red blanchable discoloration due to dilated blood vessles
Petechiae non-blanching, less than .5 cm intravascular defect
Purpura non-blanching, greater than .5cm intravascular defect
Ecchymosis non-blanching due to vascular destruction or vasculitis
Spider angioma blanchable, red body with radiating legs
Venous star non-blanchable, bluish spider
Telangiectasia fine red lines due to dilation of capillaries
Capillary hemangioma macular patch due to dilation of capillary (most raised)
Erosion loss of superficial epidermis (secondary skin lesion below the skin plane)
Ulcer loss of epidermis and at least part of the dermis (Secondary lesion below the skin plane)
Fissure linear crack from epidermis to dermis (secondary lesion below the skin plane)
Excoriation superficial linear trauma (secondary lesion below the skin plane)
Scaling shedding stratum cornea (secondary lesion above the skin plane)
Crusting dried serum, pus, or blood (secondary lesion above the skin plane)
Lichenification thickening and roughening (secondary lesion above the skin plane)
Scar connective tissue replacement (secondary lesion above the skin plane)
Keloid hypertrophied scar (secondary lesion above the skin plane)
Sclerosis Diffuse or circumscribed hardening of the skin (secondary lesion)
Atrophy thinning of the epidermis (secondary lesion)
Annular ring shaped
Arcuate partial ring shaped
circinate circular
confluent running together
discoid disc shaped wihtout central clearing
grouped clustered together
Iris circle within a circle
Linear in a line
reticulated lace like
serpiginous snake like
Malignant Melanoma - ABCDE 1) Asymmetry 2) irregular Boarders 3) Color - variegated or multiple colors 4) Diameter - greater than 6 mm 5) Evolution of old or recent
Oncolysis seperation of nail bed
Pruritus itching
Urticaria Wheal; hives; usually of systemic origin; usually due to hypersensitivity reaction
Clubbing of nails is often due to what type of diseases? Respiratory and CV disease
what are splinter hemorrhages of the nail and what are they associated with? Linear red streaks in the nail bed, associated with subacute bacterial endocarditis, trichinosis, and manual labor
What are Beau's Lines? Grooves in the nail as a response to stress that temporarily halts nail growth
A patient presents with a horizontal groove in several nails three months after having had pneumonia. This most likely represents ________ Beau's Lines
What is the cause and treatment of Alopecia Areata? Idiopathic, and resolves on its own
What causes scarring Alopecia? Skin conditions that destroy the hair follicle
What causes Traction Alopecia? Prolonged tension on the hair
What is Pityriasis alba? Macules; Common childhood disorder of unknown cause usually on sun exposed areas
What is vitiligo? Patches of lightedn skin due to decreased melanin production
Cellulitis Inflammation of the subcutaneous tissue most frequently caused by Streptococcal bacteria
What is acne? A common multifactrial inflammatory disease of the pilosebaceous follicles
Secondary Syphilis Papules; Develop 2-6 weeks after the primary infection; caused by Treponema pallidum
Lipoma a begnign neoplasm of adipose tissue
Lipoma a begnign neoplasm of adipose tissue
Oncolysis seperation of nail bed
Psoriasis Plaques; a chronic recurrent diseas of keratin synthesis
Pruritus itching
A patient presents with a skin lesion that is non-raised, and not palpable. It is darker than the rest of the skin and is about .25cm in diameter. It is a _________. Macule
Urticaria Wheal; hives; usually of systemic origin; usually due to hypersensitivity reaction
Clubbing of nails is often due to what type of diseases? Respiratory and CV disease
A patient has noticed fine red lines along their nose and cheeks. They appear to be swollen capillaries. They are probably ________. Telangectasias
what are splinter hemorrhages of the nail and what are they associated with? Linear red streaks in the nail bed, associated with subacute bacterial endocarditis, trichinosis, and manual labor
A patient comes in with a 3-5 cm diameter rough 3 mm raised skin lesion. It is silvery in appearance on the surface and the surface flakes off. This is called what? A scale
A patient presents with elevated fluid filled lesions that are 4mm in diameter and 2mm high. They are most likely ________. Vesicles
What are Beau's Lines? Grooves in the nail as a response to stress that temporarily halts nail growth
A patient has noticed fine red lines along their nose and cheeks. They appear to be swollen capillaries. They are probably ________. Telangectasias
A patient presents with a horizontal groove in several nails three months after having had pneumonia. This most likely represents ________ Beau's Lines
Importance of Stratum corneum dead keratinized cells; protects against harmful substances and fluid loss
What is the cause and treatment of Alopecia Areata? Idiopathic, and resolves on its own
Importance of Stratum basale melanocytes are located here giving skin its coloration
What causes scarring Alopecia? Skin conditions that destroy the hair follicle
What causes Traction Alopecia? Prolonged tension on the hair
What is Pityriasis alba? Macules; Common childhood disorder of unknown cause usually on sun exposed areas
What is vitiligo? Patches of lightedn skin due to decreased melanin production
Cellulitis Inflammation of the subcutaneous tissue most frequently caused by Streptococcal bacteria
What is acne? A common multifactrial inflammatory disease of the pilosebaceous follicles
Secondary Syphilis Papules; Develop 2-6 weeks after the primary infection; caused by Treponema pallidum
Lipoma a begnign neoplasm of adipose tissue
Psoriasis Plaques; a chronic recurrent diseas of keratin synthesis
A patient presents with a skin lesion that is non-raised, and not palpable. It is darker than the rest of the skin and is about .25cm in diameter. It is a _________. Macule
A patient presents with elevated fluid filled lesions that are 4mm in diameter and 2mm high. They are most likely ________. Vesicles
A patient has noticed fine red lines along their nose and cheeks. They appear to be swollen capillaries. They are probably ________. Telangectasias
A patient comes in with a 3-5 cm diameter rough 3 mm raised skin lesion. It is silvery in appearance on the surface and the surface flakes off. This is called what? A scale
Functions of the skin (9) 1) Physical protection from environment 2) Prevent fluid loss 3) Insulation 4) Production of Vitamin D precursors 5) Regulation of body temperature 6) Provide sensory perception 7) Excretion of wastes 8) Contribute to BP regulation 9) Express emotions
Importance of Stratum corneum dead keratinized cells; protects against harmful substances and fluid loss
Importance of Stratum basale melanocytes are located here giving skin its coloration
Importance of Dermis vascular connective tissue layer; contains sensory nerves and autonomic motor fibers
Importance of Hypodermis fatty connective tissue layer; generates heat and provides insulation, which prevents hypothermia
Eccrine glands sweat glands - regulate body temp; located everywhere (besides lips, eardrums, nailbeds, inner surface of prepuce, glans penis)
Sebaceous glands produce oily sebum which keeps hair and skin from drying out; secretes stimulated by testosterone
Apocrine glands secrete sticky white substance in response to emotion; odorless but bacterial decomp of thes cause body odor; located in axilla, nipples, areola, anogenital are, eyelids, and external ears
What is Lanugo? Fine silky hair over shoulders and back of newborns. Shed 10-14 days after birth
What is vellus hair? short, fine, soft, non-pigmented adult hair
What is terminal hair? coarse, longer, thicker, pigmented adult hair
What is spoon nail (Koilonychia)? central depression of hte nail with lateral elevation of the nail plate producing a spoon-like appearance
What diseases are associated with spoon nail? iron deficiency anemia, syphilis, hypothyroidism
Tinea Unguium fungal infection caused by dermatophytes that displays a yellow, brittle nail with oncholysis, resulting in breaking or crumbling of nails
What must be considered if a single black nail suddenly appears and is painless? Melanoma
What to consider in normal vs. dysplastic moles? COlor, Shape, Surface, Size, number, location
Created by: StephieeeeRae