SKIN DISEASES Flashcards
2 types of acne?
acne vulgaris
acne rosacea
acne vulgaris aetiology
disorder of the pilosebaceous apparatus
acne vulgaris presentation
comedones
papules
pustules
nodules
cysts
scars
acne rosacea age
adults
acne rosacea presentation
flushing
erythema
telangiectasia
inflamed papules
pustules
what is acne rosacea associated with
conjunctivitis
triggered by spicy foods, alcohol, stress, temp change and sunlight
how to differ acne to periorofacial dermatitis
acne causes comedones and larger deeper spots
what is a comedone
black head
periorofacial dermatitis presentation
itchy red papules around mouth, nose and eyes
what makes periorofacial dermatitis worse?
steroid creams
3 types of bacterial infections
impetigo
furunculosis
erysipelas
cause of impetigo
staph and strep infection
impetigo presentation
exudate/ yellow crusting, blisters
what can impetigo trigger
glomerulonephritis
impetigo tx
antibiotic ointment
furunculosis cause
pustular s.aureus infection of a hair follicle
furunculosis presentation
tender nodule
red flags of furunculosis
diabetes
what is erysipelas and its cause
form of cellulitis
gp A beta haemolytic strep infection
erysipelas presentation and symptoms
spreading red edge - sharp line of demarcation
discomfort, fever, and malaise
erysipelas tx
systemic antibiotic - penv
types of viral infections
viral warts
molluscum contagiosum
herpes simplex
herpes zoster
what virus causes viral warts
HPV
where do viral warts present
face - commonly in beard area of men
what virus causes molluscum contagiosum
DNA pox virus
what type of HSV causes facial lesions
HSV1
molluscum contagiosum presentation
umbilicated papules
presentation of primary eruption of HSV1
acute gingiva-stomatitis
malaise
fever
what are HSV1 recurrences triggered by
UV
menstruation
stress
respiratory tract infections
HSV1 symptoms
tingling
burning
pain
secondary infection
what disease may recurrent HSV result in
eczema herpeticum
HSV1 treatment
antiseptics
antivirals
herpes zoster aetiology
reactivation of chicken pox virus in dorsal root ganglion
herpes zoster presentation
unilateral eruption - burning, erythema, grouped vesicles, crusting
who does herpes zoster commonly present in
elderly or immunsuppressed
types of fungal infections
dermatophyte
candida
eczema
contact dermatitis
photodermatitis
lichen planus
dermatophyte presentation
‘ringworm’ or ‘tinea’ at various body sites
itchy, scaly plaque with peripheral spread/ pustular area with hair loss (kerion)
dermatophyte tx
topical steroids
topical and/or systemic antifungals
what type of pathogen is candida
opportunistic
candida presentation
white plaques within the mouth and on tongue
name of condition caused by candida in ‘wet workers’
paronychia
acute eczema presentation
red, swollen, papules, vesicles
chronic eczema presentation
scaly, pigmented, thickened, accenuated, skin markings
types of endogenous eczema
atopic eczema
seborrheic eczema
types of exogenous eczema
allergic contact dermatitis
irritant contact dermatitis
photocontact dermatitis
eczema tx
avoid irritants
moisturisers
steroids
UVL
what is atopic eczema
genetic predisposition to develop eczema, asthma, hayfever
what causes seborrhoeic eczema
pityrosporum yeast
where does seborrheic eczema present
scalp (dandruff)
face (nasio-labial folds, glabella, eyebrows)
cause of seborrheic eczema
stress induced
immunosuppression
what test must be carried out for allergic contact dermatitis
patch test
what medications can cause photodermatitis
diuretics
NSAIDs
antibiotics
what is psoriasis
chronic non-inflammatory disease
psoriasis presentation
well demarcated, scaley plaques
lichen planus presentation
itchy, flat-topped papules on wrists and legs
how does lichen planus present in the mouth
white asymptomatic lacy reticulate streaks
what is bowens disease
actinic keratoses
pre-cancerous scaley lesions on sun-damaged skin
what does bowens disease present as
thickened area of skin (looks like psoriasis)
what is the risk of bowens disease
early form of skin cancer - SCC in situ
types of basal cell carcinoma
nodular
superficial
cystic
multicentric
morphoeic
basal cell carcinoma presentation
raised, pearly edge
does basal cell carcinoma metastasise
no - locally invasive
basal cell carcinoma tx
surgical excision
PDT
cyrotherapy
SCC precursors
actinic keratoses
bowens disease
risk factors of malignant melanoma
fam history
number of moles
sun exposure
sunbed use
skin type
immunosuppression