dermatology Flashcards
what nail changes are seen in psoriasis
oncholysis
what is acanthosis nigricans associated with
hyperinsulinaemia states
e.g. PCOS
what is oncholysis
separation of the nail form the nail bed
management of seborrhoeic dermatitis
topical ketoconazole
what to give patient who has rosacea but with prominent flushing
topical brimonidine
newborn with flat purple lesion on cheek what is most likely diagnosis
port wine stain
where do pyogenic granulomas occur
at site of minor trauma e.g. splinter
where do amelanotic melanomas occur
on sole of foot
where are keloid scars most common
sternum
how to treat tinea versicolor
anti fungal - ketoconazole
what is alopecia areata
autoimmune condition caused localised well demarcated patches of hair loss
what is vitiligo
loss of melanocytes
conditions associated with vitiligo
- T1DM
- Addison disease
- pernicious anaemia
- alopecia areata
where are sebaceous cysts most commonly located
on the scalp
what is a precursor of pityriasis rosacea
viral upper respiratory tract infection
what does the rash look like in pityriasis rosacea
oval, scaly patches running parallel to the line of Langer
where does lichen sclerosis affect
genitalia of elderly women
management of lichen sclerosis
topical steroids and emollients
what is the rash like in erythema multiform
giant non itchy target lesions
what is rash like in erythema nodosum
nodular
management of pityriasis rosacea
self limiting
rash in impetigo
golden crusted skin lesions all around the mouth
what rash is associated with hot water bottles
erythema ab igne
what initial investigation to do if someone has erythema nodosum
tuberculosis
sarcoidosis