Random 2 Flashcards
what are the features of pityriasis versicolor?
what is the management?
superficial cutaneous fungal infection
most commonly affects trunk with hypopigmented, pink or brown patches
management: topical antifungal (e.g. ketoconazole shampoo)
if failure to respond, give oral itraconazole
how does porphyria cutanea tarda present?
photosensitive rash with increased fragility on face and dorsum of the hands
hypertrichosis
hyperpigmentation
what are the causes of purpura in children?
meningococcal septicaemia
ALL
ITP
henoch-schonlein purpura
what are the causes of purpura in adults?
ITP
bone marrow failure
senile purpura
nutritional deficiencies (vitamin B12, C and folate)
what are the features of pyoderma gangrenosum?
what are the causes of pyoderma gangrenosum?
typically on lower limbs
start as a small red papule, develop into large deep red necrotic ulcers
causes: IBD, RA, SLE, myeloproliferative disorders, lymphoma, leukaemia, primary biliary cirrhosis
what is the management of pyoderma gangrenosum?
1) oral steroids
2) ciclosporin or infliximab in difficult cases
what is the management of scabies?
1) permethrin cream
2) malathion cream
advise patient that pruritis persists 4-6w following eradication
avoid close physical contact
wash all sheets bedding etc
what are the features of seborrhoeic dermatitis?
eczematous lesions on sebum rich areas (scalp, face)
may cause dandruff
Head and Shoulders
ketoconazole
what are the features of seborrhoeic keratoses?
variation in colour: light brown, black
keratotic plugs and a stuck on appearance
benign
curettage, cryosurgery can be used
what is the available treatment for a strawberry naevus?
propranolol
what is the treatment of urticaria?
reduce stress, alcohol caffeine, NSAIDs and ACEi
calamine lotion
cetirizine, loratidine up to 6 weeks
if it develops into angioedema = urgent hospital admsision
what is the treatment of angioedema?
may need hospital admission avoid triggers loratadine adrenaline if severe reaction hereditary? danazol
