Dermatology 1 Flashcards
- What is Alopecia Acreta?
- Classic presentation?
- What is pathopneumonic for Alopecia Acreta?
- Non-scaring autoimmune hair loss.
- Well demarcated, non scarring round patches of hair loss.
- Exclamation point hairs (narrows at base)
What is treatment for Allocepia Acreta?
Topical or Intralesional CORTICOSTEROIDS.
(However, condition benign and relapse is common. Hair will eventually grow back in 1-2 years).
What bug causes Tinea Versicolor?
How do you diagnose Tinea Versicolor?
TRX?
Malassezia sp.
Dx= Clinical but can also do KOH prep = Hyphae + Yeast
TRX = Anti fungal
PLANTAR WARTS are hyperkeratotic lesions on soles of feet caused by HPV.
- It is associated with what type of job?
- What is is the two mainstay TRX?
- Meat Handlers.
2. Salicylic Acid OR Liquid Nitrogen (multiple applications needed for weeks).
What is the presentation of Seborrheic Dermatitis?
Pruritic, erythematous plaques, with loose greasy looking scales on scalp (dandruff), face, and ears.
Four options to treat Seborrheic Dermatitis?
1) Topical Antifungal (Ketoconazole, Selenium Sulfide)
2) Coal Tar
3) Topical glucocorticoids
4) Calcineurin inhibitors (Tacrolimus) if severe.
What are the 4 classic symptoms of PORPHYRIA CUTANEA TARDA?
What illness is PCT associated with?
1) Painless Blisters on Dorsal hands
2) Increased fragility of skin.
3) Hypertrichosis (increased body hear)
4) Hyperpigmentation
Hep C
- What is the pathology in Porphyria Cutanea Tarda?
- PCT can be triggered by ingestion of what two things?
- TRX of PCT?
- deficiency of Uroporphyrinogen decarboxylase (enzyme in Heme synthesis)
- Etoh and Estrogens
- TRX = Phlebotomy or Hydroxychloroquin
How to you diagnose and treat SCABIES?
DX: Skin scrapings showing mites, feces, ova
TRX: 5% Permethrin Cream for whole body.
+ Put all your clothes/linens in bag for 3 days (mites can only life off skin for 2-3 days.
How does Scabies present?
- Pruritic Rash WORSE AT NIGHT.
2. Red papule and linear burrows.
TRX of keloid scars?
Intralesional glucocorticoids
What does Lichen Planus Lesion looks like.
How can lesions differ if they are located in the mouth?
Where are these lesions located?
Shiny discrete intensely pruritic polygonal shaped violaceous plaques and papules.
Can have a lacy white pattern on lesion surface (Wickham Striae)
Skin (often flexor surfaces, classically wrist), genitals, mouth/mucus membrane.
Lichen Planus is associated with what disease?
HCV
What type of bullae do you see in Bullous Pemphigoid and Pemphigus Vulgaris?
Bullous Pemphigoid = Tense Bullae
Pemphigus Vulgaris = Flacid Bullae.
Erythema Multiforma (targe lesion) can be seen in Rheymatic heart disease, lyme, drug rxn….but if you have disseminated EM all over the body…what is the most common cause?
Herpes Simplex Virus
