Dermatology Flashcards
Rosacea presentation and typical tx
Dry skin with intermittent facial flushing with pustulent rash around nose, erythema affecting nasolabial folds ….topical metrondiazole
Bullous impetigo
flaccid bullae which leak straw-coloured fluid (staph. aureus) vs Bullous pemphigoid (multiple tense blisters)
Lichen planus presentation and treatment
Shiny red papules on flexor surfaces with white streaks. Possible lesions in mouth. Tx topical corticosteroids and steroid mouthwash
Which medication worsens psoriasis?
Beta blockers
Common Bacterial Skin Conditions and their causative organisms
Common Viral Skin Conditions and their causative organisms
Common fungal skin infection and their causative organisms
Causative organisms most commonly causing erysipelas, cellulitis and nec fasc
Difference erysipela, cellulitis and nec fasc
Erysipelas presentation and treatment
Tx: penicillin 14 days
Cellulitis
Fluclox PO or if systemically unwell, fluclox IV
Treatment of BCC
Large-ulcerated BCC -> surgical excision
Cryotherapy -> small, low-risk BCCs
Fluorouracil cream -> superficial BCC on the trunks and limbs
Imiquimod -> immune modulator, small, low risk BCC
birch fruit syndrome tx
oral cetirizine (anti-histamine)
arterial vs venous ulcers
What is necrobiosis lipoidica diabeticorum?
Enlarging red-brown lesions over the shins which become atrophic with a yellowing centre over time
treatment for rosacea
avoid drinking alcohol
others: azelaic acid, oral ivermectin, brimonidine, doxycyline and isoretinoin
