Tuesday - Westra - Inflammatory blistering diseases Flashcards
What anti-viral do you give to someone with herpes simplex?
Zovirax, acyclovir
Herpes simplex 1 vs 2
1 - get during childhood via non sexual contact. 90% cause facial lesions call herpes labialis.
2 - Lifelong, recurrant. VIRAL CULTURE PREFERRED DIAGNOSIS
Herpes Varicella
Chicken pox, zoster virus. Prodrome: fever, chills, malaise. HALLMARK: dew drop on rose pedal spread by respiratory droplets 2-3 week incubation period
Major complications with chicken pox
encephalitis, pneumonia, hepatitis, reye’s syndrome
Key hallmarks of shingles
Only one dermatome, unilateral.
prodrome: pain along nerve root up to 5 days prior to rash
Dissemination: then it isn’t due to ummunosuppression
Hutchenson’s sign
When shingles appears on the tip of the nose, you are more likely to have eye complicaiton.
How to immunize against shingles?
Zostavax
Non - bullous impetigo
caused by Strep pyogenes, staph aureus, most common type of impetigo.
small vesicle ruptures, and rapidly becomes an erosion with honey colored crusts
Bullous pemphigoid. Age? What is treatment?
IgG at bottom of basement membrane, destruction of hemidesmosomes. erythematous bubbles. 60-80 years.
prednisone, oral.
Dermatitis herpetiformis. Age?
autoimmune. associated with celiac. most patients are between 20 and 40.
Pemphigous vulgaris
destruction of desmosomes (autoimmune). rare. Nikolsky sign (top layers of skin slip away from lower layers when slightly rubbed, may create blister). 40-60 years.
porphyria cutanea tarda
Deficiency in heme - synthesizing enzyme.
Blisters on skin in sun-exposed areas.
hyperpigmentation