Major presentations and management Randomised Flashcards
Risk factors for AK
(same as SCC)
- Sun exposure
- Age
- Outdoor occupation
- FHx
- PMHx
- Immunosuppressants
- Red hair, blue eyes, pale skin
Derm features of impetigo
D Usually on face (perioral)
C none
M orange/yellow/gold crusted plaques
Derm features seborrhoeic warts aka keratosis
A asym
B reg reg well defined
C brown yellow uniformish
D small
E elevated
Morph Scaly papules, look warty
Benign but exclude malignant melanoma
classic features of an arterial ulcer
- Raised edges (punched out)
- Deep (down to tendons)
- Not bleeding
- shiny, tight, dry, and hairless skin surrounding
- Leg goes red on de-elevation and white on elevation
- Leg pain at night resolved by dangling leg off bed
Standard sun advice
- Avoid direct sunlight March-Oct, 11am-3pm
- SpF 50+ idealy minimum 30+ reapply every 2 hrs + 30 mins before going out
- Cover up
- No sunbeds
derm features of IBD
Pyoderma gangrenosum
Erythema Nodosum
Toxic epidermal necrolysis derm featres
D Wide spread
C Non
M erythema, necrosis, and bullous detachment of the epidermis and mucous membranes. Sheering
Investigations in allergic contact dermatitis
Patch test
Changes in ABPI in different ulcers
Arterial uler ABPI <0.9 usually 0.5
Else it should be fairly normal
Treatment of scabies
- permethrin cream 5% (insectiside)
- Use on whole body
- Treat all contact simulanteously
- Repeat after 7 days
- Wash all bedding
Describe the step wise approach to psoriasis treatment
**No Oral Steriods**
Lifestyle
- Dec smoking
- Dec wgt
- Dec stress
- Sunlight does improve psoriasis caution skin cancer
Step 1
- Topical
- Steriods mild/moderate
- Emollients
- Coal tar preparation
- Vit D analogue - calcipitol
- Dovobet/Dovenex (vit D and steriods)
Step 2
- Phototherapy
Step 3
- Immunosuppression (meds)
- Methotrexate
- Cyclosporin
- Acitretin
Step 4
- Biologics (strong immunosuppresants)
What can exacerbate atopic eczema
- Infection
- Irritants e.g. soap
- Stress
- Allergens e.g. pollen, pets
- Environment e.g. winter low humidity
Management of erythroderma
- IV fluids
- Stop any drugs that could be causative
- Punch biopsy
- Emollient (50/50)
- Topical steriods
- Consider immunosuppresants and non-drousy anti-histamines
Management of BCC
Topical
- Efudix
Surgery
- Cryo
- Excision 4mm margin
- Mohs excision (involves sending to histology to check all remoived)
Other
- Full skin check
- LNs check
- MDT approach
- Skin cancer nurse referal
what are the complications of rosacae
Ocular rosacea - blepharitis, keratitis
Treatment of tinae capitis
griseofulvin - oral anti fungal
AND
Terbinafine - topical anti fungal
Topical treatments of acne vulgaris
- Retiniods
- Antibiotics (erythromycin)
- Bensyl peroxide
Derm features tinea capitis
D scalp
C none
M erythem plaques w/ scaling and GRADUAL alopecia
What is perioral dermatitis and how is it treated
mix between acne and dermatitis
Steriod will reduce redness but will cause rebound worsening
Treat with oral tetracyclines e.g. doxycycline
List a derm feature of DM1
DM1 -> necrobiosis lipoidica
Important questions to ask in Hx of tinea capitis tp exclusde other causes and spread
- Pets
- Known allergies
- Contacts +/- Sx
- Siblings +/- Sx
- Other symptoms
What are the prognostic factors for malignant melanoma
- TNM stage
- Breslow thickness
Drug that causes eruptive acne
anabolic steriod/testosterone
Breslow thickness –> stage
- Stage 1 <0.75mm
- Stage 2 0.76-1.5mm
- Stage 3 1.51-2.25mm
- Stage 4 2.26-3 mm
- Stage 5 >3.1mm
Derm features of erythrodermic psoriasis
D - Widespread
C - none
M - Erythem plaques
+/- shedding scin, scaling, pustules, blisters
Investigations to confirm tinea capitis
Skin scraping
Hair sample
Derm features cherry angioma aka strawberry naevus aka Strawberry hemangiomas and their prognosis
A asym
B reg
C cherry red
D up to 1.5 cm
E yes
Morph papule/nodule
Birth mark that can grow will reach peak at 1 year of age and then will slowly dimish may leave yellowish mark
Derm features flexural inverse psoriasis
D - Flex surfaces (folds)
C - None
M - Erythem plaque
Derm features of SCC
- A - asym
- B - ireg ireg
- C - erythem varied
- D - >2cm
- E - Elevated
- Morph nodule/plaque with keratotic (dead skin), ulceration and crusting
Can present as ulcer on lower limbs esp if edges are raised and it doesn’t respond to simple ulcer measures
What is important to rule out when presenting with cherry angioma or Pyogenic granuloma
SCC
if risk factors are present esp age SCC until peroved otherwise
Name the tool used to assess the impact of dermatology conditions on the patients life
Dermatology life quality index (DLQI)
Emollient and steriod regime in eczema
Emollient
- Min 2x daily everywhere ideally 4x
Steriod
- 1% hydrocortisone (mild) on face
- Anywhere up to Eumovate (moderate to potent steriod) for body
- Maintanence 2x weekly
- 1x daily on affected areas for 2 wks
Do not apply emollient and steriod on same area within 30 mins one won’t be absorbed
What subtype of malignant melanoma is more prevalent in darker areas?
acral lentiginous melanoma
Investigations and management of eczema herpeticum
Investigations
- VIral swabs
Management
- Aciclovir oral
- Stop topical steriods
- Treat any 2ary bacterial infection
- Opthalm review if eye involved
Complications of TEN
- Hypothermia
- Inc cardiac output
- Sepsis
- Fluid loss
Treatment of tinea pedis
Eliminate risk factors
Terbinafine or griseofulvin (anti fungal pill)
NAme the most common sites affected in chronic plaque psoriasis
Extensor surfaces, scalp, nails, flexor surfaces
Derm features of chronic plaque psoriasis aka discoid
D wide spread
C none
M discoid erythem well defined patches with scaling
Derm manifestation of herpes virus
Erythema multiforme
Derm features in pyogenic granuloma
A - sym
B - reg
C - erythem some yellowness (tissue sloughing off)
D - <1cm
E - Elevated
Morph - Papule
causes of impetigo and treatment
Staph
Strep
Flucloxacillin (oral)
Derm features of eczema
D Widespread but can affect flex surfaces
C none
Morph pruritic erythem plaques +/- excoriations, thickenings, Xerosis, fissures
Derm features of allergic contact dermaitis
D area touching allergen
C clustered
M Erythem plaques
Risk factors for developing malignant melanoma
- Sun exposure
- Age
- Outdoor occupation
- FHx
- PMHx moles
- Immunosuppressants
- Red hair, blue eyes, pale skin