Benign Skin Lesions Flashcards
(31 cards)
Which lesion presents as waxy or verrucous appearing papules or plaques that have a “stuck on” appearance?
seborrheic keratosis
Name a differential for seborrheic keratosis
melanoma
Which type of lesion appears as “bumps” on the skin caused by virus, pearly/flesh colored w/ central umbilication?
molluscum contagiosum
Which benign skin lesion is transmitted through skin to skin contact?
molluscum contagiosum
Which benign scaly lesion is precancerous?
actinic keratosis
What is a differential for actinic keratosis?
Squamous cell carcinoma Cryotherapy or refer to derm
Which type of benign lesions feel like sandpaper and are described as “chicken skin” due to the build up of keratin?
keratosis pilaris
What is the treatment for keratosis pilaris?
Moisturize w/ uric acid
Acrochordon (skin tags) are associated with what conditions?
Metabolic disorders and obesity
What is the treatment for acrochordon (skin tags)
scissor excision electrocautery cryotherapy (may cause hypopigmentation)
Which benign lesion is characterized as red or violaceous non-blanching macules or papules arising from capillaries?
Angioma
Which benign lesions are firm, flesh colored, dome-shaped nodules that result from trauma such as body hair removal or insect bites?
Dermatofibromas
How do you diagnose dermofibromas?
Fitzpatrick sign = squeeze the lesion with the thumb and forefinger. Dimpling is a positive sign.
The enlargement of sebaceous glands beneath the skin associated with a pore or follicle is called…
sebaceous hyperplasia
An important differential to consider with sebaceous hyperplasia is…
Basal Cell Carcinoma ***Refer to derm for biopsy
Which lesion is raised, shiny, superficial, infiltrated most often found on the nose?
Basal cell carcinoma
Describe 2 stages of basal cell carcinoma
Stage I = <2cm Stage II = >2cm
Which lesion is a non-melanoma, cancer of the epidermal keratinocytes, hyperkeratotic plaque, “rodent bite,” common on the face, ulcerated center, top of ears, back of neck , cheeks, nose, and lips, head on males with no hair.
Squamous cell carcinoma REFER OUT
During a total body skin examination for skin cancer, the provider notes are raised, shiny, slightly pigmented lesion on the patients nose. What will the provider do? a. Consult the dermatologist about possible melanoma b. Reassure the patient the lesion is benign c. refer the patient for possible electrodessication and curettage d. Tell the patient this is likely a squamous cell carcinoma.
ANS: C This lesion is characteristic of basal cell carcinoma which is treated with electrodesiccation and curettage. Melanoma lesions are usually asymmetric lesions with the regular borders, variable coloration >6mm diameter which are elevated. They should be referred immediately. All suspicious lesions should be biopsied until the results are known, the provider should not reassure the patient that the lesion is benign. Squamous cell carcinoma is roughed, scaling and bleeds easily
What is the initial approach when obtaining a biopsy of potential malignant melanoma lesion? a. Excisional biopsy b. Punch biopsy c. Shave biopsy d. Wide excision
ANS: A A suspected malignant melanoma lesion should be biopsied with excisional biopsy; if diagnosed, a wide excision should follow. Punch and shave biopsy procedures are appropriate for diagnostic evaluation of NMSC lesions.
How is molluscum contagiosum transmitted?
Skin to skin. Can be sexually transmitted
What is the treatment of molluscum contagiosum?
Can be left alone. Immune system will fight it off in about 6 months. Cryotherapy Trentinoin or Beetlejuice (not used in primary care) homeopathy: apple cider vinegar
What is the treatment of actinic keratosis?
Cryotherapy Topical trentinoin Laser +topical 5 uracil
What is the treatment for seborrheic keratosis?
Reassurance
