Dermatology Flashcards
Rash? Symmetrical involving perioral, acral and perineal areas. B/g exclusively BF, poor feeding, irritability and maternal Crohn’s (aka malabsorption)
Zinc deficiency
Rash? Septic infant
Meningococcus
Rash? B/g SLE on immunosuppressants
Vesicular rash near eye, suggestive of herpes zoster opthalmicus (sight threatening condition linked to VSV re-activation within the trigeminal ganglion). Rx = IV acyclovir
Condition? +/- febrile. Mass is warm and fluctuant, overlying skin erythematous. Bulging left TM.
Mastoiditis
Rash and Rx? Febrile, b/g eczema, fam hx athma. PO flucox and 1% hydrocort ineffective
Eczema herpeticum. Rx = IV aciclovir
Rash? 15 mth old infant, pruritic lesions on scalp, neck, palms and soles
Scabies. Involvement of palms and soles is characteristic. Note linear burrows on palms.
NF1 or NF2?
NF1 - skin lesions possible but less likely with NF2
Rash? 3 yrs. Rash is worse with heat and fever, fades with normothermia. Extended febrile illness, anaemic; high WCC, neuts, plts abd ESR; elevated IgG, IgA and IgM. No improvement with amoxicillin.
Systemic onset juvenile chronic arthritis
Condition?
Congenital dermal melanocytosis
Caused by impaired melanocyte precursor migration from neural crest to epidermis (entrapment in dermis)
Condition? Multi week hx of itchy reddish-brown maculopapular rash. Stroking the lesions leads to surrounding erythema.
Urticaria pigmentosa
Condition? 5 day old, peri-umbilical erythema progressing to perioral then face, trunk and flexural rash with bullous formation and desquamation.
Staph scalded skin syndrome
Condition? 1 mth girl, redness and swelling both breasts
Neonatal mastoiditis
Usually caused by staph aureus
Other bugs: gram neg enteric bugs (E Coli, Salmonella), anaerobes, GBS (strep agalactiae)
Rash?
