Passmedicine Flashcards
Peri-orbital and nasolabial scaly rash, dandruff
Seborrhoeic dermatitis
First line treatment for seborrhoeic dermatitis
Topical ketoconazole
Worst type of melanoma
Nodular melanoma
Toxic epidermal necrolysis is a rare but important side effect of which medications?
Penicillins
Symmetrical target lesions
Erythema multiforme
Treatment for excessive sweating
Topical aluminium chloride
Botox
Drugs which can cause a lichenoid eruption
Gold
Quinidine
Thiazides
What is the Koebner phenomenon
Skin lesions which appear at the site of injury
Treatment of impetigo
Topical fusidic acid
Red or black lump, oozes or bleeds, on sun-exposed skin
Nodular melanoma
Trichophyton rubrum
Fungal nail
Treatment for fungal nail
Oral terbinafine first line
alternative = oral itraconazole
Malassezia fungus causes what skin condition?
Ptyriasis versicolour
Treatment of scabies
Permethrin
Malathion lotion
Treatment of pyoderma gangrenosum
Oral steroids
Treatment of erythrasma
Erythromycin
(erythrasma is a generally asymptomatic, flat, scaly, pink or brown rash usually found in the groin or axilla - caused by overgrowth of diptheroid Corynebacterium)
What causes dermatitis herpetiformis?
Caused by deposition of IgA in the dermis
-associated with coeliac disease
How to identify cause of contact dermatitis
Skin patch test
Treatment of erythema nodosum
Usually resolves within 6 weeks - don’t usually give active treatment
What is erythema nodosum
Inflammation of subcutaneous fat
Treatment of pityriasis versicolour
Topical ketoconazole
This rash might occur after a sore throat?
Guttate psoriasis
How long will someone be itchy with scabies for?
Normal to be itchy for up to 4-6 weeks post eradication
Where are keloid scars most likely to form?
Sternum
Side effect of topical corticosteroids (e.g. clobetasone)
May cause patchy depigmentation in patients with darker skin e.g. asians
Seborrhoeic dermatitis is more common in patients with which disease?
Parkinsons
Treatment for actinic keratoses?
Topical fluorouracil cream
Most common side effect of isotretinoin
Dry skin, eyes and lips are the most common side effects