Derm Flashcards
Light microscopy for herpes zoster
Intranuclear inclusions in keratinocytes and multinucleated giant cells
Vitiligo
Loss of epidermal melanocytes
Common mutation in melanoma
BRAF V600E
Aggregates of nevus cells limited to the dermoepidermal junction
Junctional nevi
Aggregates of nevi extend into the dermis
Compound nevi
Xeroderma pigmentosum
Develops due to a defect in nucleotide excision repair. Characterized by increased sensitivity to UV radiation and a high incidence of cutaneous malignancy
Roseola infantum
Most commonly caused by HHV-6. High fever followed by erythematous maculopapular rash that starts on the trunk and spreads to the face and extremities.
Slapped cheek rash
Erythema infectiosum, or fifth disease. Caused by parvovirus B19