Derm Flashcards
What diseases should be in the ddx if there are recurrent aphthous ulcers?
IBD
Celiacs
Becets
What is the treatment for herpes gingivostomatitis?
IBU/tylenol
hydration
acyclovir
Who gets herpes gingivostomatitis? Why?
Children, since this only occurs with the first episode
If gingivostomatitis presents in adults, how does this differ form presentation in kids?
More posterior in the posterior oropharynx
What is the treatment for herpetic whitlow?
Supportive care
How do you differentiate between aphthous ulcers vs herpes labialis?
Herpes will be along the vermillion border, whereas aphthous ulcers will be in the oropharynx
What are the red/brown dots that are characteristic of warts (verruca vulgaris)?
Thrombosed capillary loops
How do you differentiate between a callus vs a wart?
Dermatoglyphic will be intact with a callus, whereas they will be distorted with a wart
Genital warts in children = ?
Sexual abuse
How do you differentiate between condyloma accuminata vs condyloma lata?
Lata = wet, soft , velvety = syphilis
What are the three C’s of measles?
Cough, coryza, conjunctivitis (Koplik spots)
How does the rash of Measles spread and resolve?
Head to feet, coalesces, then disappears in the order is came
What is the treatment for measles?
Supportive care or IgM if immunocompromised. Should get better in 1-2 weeks
What is the diagnostic test for measles?
Serum IgM + RNA PCR of saliva, serum, urine
What are the skin findings of scarlet fever? (4)
- Pastia lines
- Sandpaper rash the desquamates
- Strawberry tongue
- Circumoral pallor
How does the rash in rubella differ from rubeola?
Rash does not darken like measles
How long does rubella vs rubeola last?
Rubella = 3 days Rubeola = weeks
What are forchheimer spots?
Palatal petechiae seen in rubella (also seen with strep pharyngitis)
What is erythema infectiosum? Presentation? Treatment?
Slapped cheek syndrome caused by parvovirus
- Slapped cheeks, lacy rash with circumoral pallor
- GSC
Who should kids with erythema infectiosum avoid?
SCC or pregnant pts
What is erythema subitum (sixth disease)? Presentation? Treatment?
- High fever for several days, then morbilliform rash forms with defervescence
- gsc
Pruritic dew drops on a rose petal in different stages = ?
VZV
What is the treatment for chickenpox?
gsc or acyclovir if immunosuppressed or older than 12 yo
How does herpangina present compared to coxsackievirus?
High fever with papulovesicles in the posterior oropharynx
How do you differentiate herpangina vs HSV that involves the posterior oropharynx?
Many more lesions with HSV than with herpangina
What medication can be given to older pts in anaphylaxis who do not respond to epi?
Glucagon
What is the appearance of erythema multiforme?
Target lesions that involves palms and soles
What is the major viral cause of erythema multiforme?
HSV
True or false: erythema multiforme does not involve the mucosa
True, for the most part