Derm Flashcards
Three main types of skin cancers.
Non-melanomas: squamous cell and basal cell
Melanoma
Where are squamous cell cancers usually found?
Sun exposed areas of head and neck
What is actinic keratosis?
Precancerous lesion due to sun exposure. Also called solar keratosis. Highly variable look but typically irregular, raised, rough, small, red with scaly top.
Basal cell carcinoma info.
Most common type of skin cancer
Least deadly
Rarely ever metastasize
Occur on sun exposed areas
Arise from epidermal basal layer
Can look like a sore that won’t heal
Can look pearly or shiny
Can be pink or white and waxy
Can have a center crust or ulcer
Squamous cell carcinoma info.
–Skway-mus–
Aggressive and can metastasize
Arises from keratinizing epidermal cells
Often occurs at base of actinic keratosis.
Can look like: Firm, red nodules
Flat sores with a scaly crust
An old scar or ulcer that has a new sore or raised area
Rough, scaly patches on your lips that can become open sores
Red sores or patches that appear on the insides of your mouth
Raised, red patches or sores that appear on your genitals
Melanoma info.
Prognosis is related to the thickness of tumor.
Most common site on women is legs.
Most common site on men is back and chest.
Scale to measure thickness is called Breslow scale.
Highly aggressive and metastasizes quickly.
Typically dark variegated color.
What is impetigo caused by?
Strep or staph bacteria.
Common in children and presents commonly as itchy, red blisters on face, mouth, nose. Crust over in a honey color. Highly contagious.
What is cellulitis?
Staph or strep infection with deep inflammation. Fever, tenderness, swelling in site. Injury, insect bites, break in skin, immunosuppression, diabetes increase risk.
What is a carbuncle?
Caused by bacterial infection. Cluster of boils
What is a furuncle?
A boil. Caused by a bacterial infection usually at hair root
What is furunculosis?
Recurring boils. More common in immunocompromised, diabetics, obese, areas exposed to chronic moisture.
What is folliculitis?
Inflamed hair follicles. Caused from bacteria. Usually from shaving. Common in neck on men and armpits on women.
What is erysipelas?
Bacterial infection more superficial than cellulitis.
Caused by strep
Most common on face (sometimes seen as a red butterfly patten)
and lower extremities.
Most commonly infects infants and elderly.
In infants it most commonly occurs around umbilicus or diaper region.
It is different than cellulitis in that it has pronounced edema.
What is med term for head lice?
Pediculosis capitis
What is med term for ringworm?
Tinea corporis
