3: Skin, Acne, and Neoplasms Flashcards
What type of nevi?
Reddish pink, dome-shaped, smooth papule often occurring on the scalp, face, or legs of preadolescents with architectural features that would be worrisome for melanoma in adults. Most dermatologists favor complete excision.
Spitz (Spindle Cell) Nevi
What is the treatment for rosacea (3)?
- Metronidazole
- Azelaic acid 15% gel
- Doxy (40 mg modified release to address inflammation)
What exacerbates rosacea (6)?
- Hot foods/drinks
- Red wine
- Heat
- Sun
- Topical retinoids
- Chemical peels
Inflammation of the hair follicle resulting in erythematous halo on scalp, axillae, extremities, and trunk.
Folliculitis
What type of nevi?
Markedly raised, smooth to papillomatous, pigmented, dermoepidermal to dermal papules. Increase in thickness and pigmentation during adolescence.
Compound Nevi
When are nevi acquired?
As a child, esp in teenage years.
List characteristics of a benign nevi (6).
- Asymptomatic
- Symmetric
- Well-defined
- Borders are regular
- Color is uniform
- Less than 6 mm
What type of nevi?
Elevated, fleshy, skin-colored to dark brown, dermal to subcutaneous papules seen mainly after adolescence.
Intradermal
Facial eruption of papules and pustules, with flushing, redness, and telangiectasias (vascular). Can also be ocular or rhinophyma.
Rosacea
What is the peak age range for warts?
12-16 yo
What type of nevi?
Rim of hypopigmentation, which develops around a preexisting nevus heralding its gradual disappearance from a host response directed against the nevus cells. Focal atypia may be present but most are benign. They occur in the setting of vitiligo and may develop in patients with melanoma.
Halo Nevi
T/F Molluscum is considered an STD.
True. In adults and teenagers.
Which type of nevi is worrisome for melanoma and likely needs complete excision?
Spitz (Spindle Cell) Nevi
Localized, self-limited, viral skin infection which presents as firm, 1- to 2-mm, shiny or skin-colored papules with central umbilication.
Molluscum Contagiosm
How is bacterial folliculitis treated?
With topical ABX.
What type of nevi?
Flat, slightly raised, tan to brown dermoepidermal papules. Seen most commonly in children. Often nevi at palms, soles, genitalia, and mucosa are this type.
Junctional Nevi
Benign skin growths composed of melanocyte-derived cells classified by age of onset and arrangement of the cells.
Nevi (mole)
Benign HPV infection of the skin and mucosa with 150 subtypes that is transmitted by contact.
Warts (verruca vulgaris)
T/F Seborrheic keratoses increase with age.
True
Seborrheic keratoses may require biopsy. If many erupt at once, what might you suspect?
GI malignancy
What type of nevi?
Solitary tinted papules found at the head, neck, and buttocks located in the mid to lower dermis, which present at birth or early childhood.
Blue Nevi
Horny, scaly, hyperkeratotic lesions containing small black dots.
Warts (verruca vulgaris)
Seborrheic keratoses may occur as a postinflammatory response. Name 2 examples.
- Sunburn
2. Eczema outbreak
Yellow to deep red exophytic, dome-shaped, 3- to 10-mm papules comprised of proliferating capillaries separated by thick fibrous brands and surrounded by an epithelial collarette.
Pyogenic Granuloma
Most common population for rosacea?
Females over 30 years of age
Flat or raised, smooth, velvety, verrucous, and present as “pseudohorn” cysts.
Seborrheic Keratoses
How is molluscum spread?
Skin to skin contact.
Benign lesion that can be present in the hundreds. Dome-shaped polypoid papules ranging from 0.5-5 mm in size.
Cherry Hemangiomas
Which type of folliculitis is common in athletes, what causes it, and how is it treated?
Pityrosporum is caused by Mallassezia furfur and is treated with antifungals.
What can cause pyogenic granulomas?
May result from trauma.
What are age range peak occurrances for molluscum?
3-9 yo
16-24 yo
If there is an explosive eruption of cherry hemangiomas, what might be the problem?
Respiratory, pancreas, or small bowel tumor
What type of nevi?
Sharply defined tan to brown macule containing small benign nevi, which develops before adulthood.
Nevus Spilus
Benign, common, epidermal growths with multiple presentations that can present anywhere except the lips, palms, and soles.
Seborrheic Keratoses
T/F Molluscum can be the result of HIV or other form of immunosuppression.
True
T/F Seborrheic keratoses are asymptomatic.
False. They can be, but they can also become itchy, inflamed, or irritated.
Nevi usually do not number more than _____.
20
What is an easy, effective treatment for warts?
Tape
Inflammatory skin disorder with neurovascular dysregulation and augmented immune detection and response.
Rosacea
What is the causative agent for hot tub folliculitis and how is it treated?
Pseudomonas. Treated with 5% acetic acid compresses.
T/F Because pyogenic granulomas are benign neoplasms, nothing needs to be done.
False. They require biopsy or excision.
T/F Folliculitis is a bacterial infection.
False. It can be both bacterial or fungal.
T/F Warts often resolve spontaneously within a few years but can be difficult to clear in immunocompromised patients.
True
