Dermatology Flashcards
State the layers of the skin (epidermis)
Keratin
Granular
Prickle cell
Basal
Test completed for hypersensitivity type I
IgE levels
Test for type IV hypersensitivity
Patch test
Type of genetic defect for tuberose sclerosis
Autosomal dominant
State the depth level Breslow’s thickness reaches
Granular layer to the deepest melanoma cell
Skin condition that occurs on FLEXURES
Eczema
Skin condition that occurs on EXTENSORS and affects joints +/- nail changes
Psoriasis
What do you use to measure dysplastic naevi?
Breslow’s thickness
Old man + half of face affected by skin lesion *usually trigeminal nerve dermatome
Shingles
“Stuck on appearance”
Basal cell papilloma(Seborrheic keratosis)
“Picket fence pearly border”
Basal cell carcinoma
Condition linked with dermatitis herpetiformis
Coeliac disease
Skin condition that commonly occurs in sarcoidosis, ulcerative colitis and TB
Erythema nodosum
Name the lesions that occur in Lyme disease
“Erythematous Bullseye lesion” (Erythema migrans)
Ash leaf spots/shagreen patches
Tuberous sclerosis
Honey coloured crust on face
Impetigo (caused by staphylococcus aureus or group A haemolytic strep)`
Café au lait spots
Neurofibromatosis Type 1 or Type 2
Silver scales on extensor surfaces
Psoriasis
Cauliflower appearance
Plantar warts
Sarcoma likely to occur in those with HIV and immunosuppressed (transplant)
Kaposi’s sarcoma
Intense erythema on cheeks (and proximal limbs of a child)
Slapped cheek (caused by [erythrovirus] Parvovirus B19
Small, umbilicated, translucent papules that look fluid filled but are solid
Molluscum contagiosum
Flaccid blisters that can be burst easily to form erythematous erosions
Pemphigus Vulgaris
Large tense bullae that are itchy and cannot be burst
Bullous Pemphigoid
Heliotrope rash and scaly knuckles
Dermatomyositis
“Fish scale skin”
Ichthyosis
Velvety thickened lesions in axillae
Acanthosis nigricans
Target lesion
Erythema multiforme
Small, keratin filled cysts that typically appear around the face + more common in neonates
Milia
Is Osler-Webber-Rendu syndrome/Hereditary haemorrhagic telangiectasia (HHT) autosomal dominant or recessive?
Autosomal dominant
Type of hypersensitivity reaction caused by scabies
Type IV (delayed hypersensitivity)
How many days after infection does scabies occur?
30
How long is continued itching post eradication of scabies still considered normal for?
4-6 weeks
“Melanoma in situ”
Lentigo maligna
Type of hypersensitivity reaction caused by erythema multiforme
Type IV (delayed hypersensitivity)
Type of transplant patient at increased risk of Squamous Cell Carcinoma
Renal transplant
Skin condition associated with Chron’s
Pyoderma gangrenosum
Open and closed comedomes + pustules + nodules
Acne vulgaris
1st line treatment for aggressive fungal infection
Oral terbinafine
Antibody associated with coeliac disease
Anti-tissue transglutaminase antibody (anti-TTG)
State the burn classification: Red and painful
Superficial epidermal burn
State the burn classification: pale pink, painful and blistered
Partial thickness (superficial dermal) burn
State the burn classification: Typically white, but may have patches of non blanching erythema + reduced sensation
Partial thickness (deep dermal) burn
State the burn classification: White/brown/black in colour + no blisters + no pain
Full thickness burn
Treatment of choice for impetigo
Topical fuscidic acid
Yeast associated with Pityriasis versicolor
Malassezia
Purple, pruritic, popular, polygonal rash on flexor surfaces, Wickham’s striae over surface oral involvement common
Lichen planus
Type of infection that can precipitate psoriasis
Stre
Type of infection that can precipitate psoriasis
Streptococcal throat infection (may especially precipitate guttate psoriasis)
Structure targeted by pemphigus antibodies
Desmosomes that connect the cells
State the most aggressive subtype of melanoma
Nodular melanoma
“Black or red lump that oozes or bleeds located in a sun-exposed area”
Nodular melanoma
What is the most significant complication of PUVA therapy ?
Squamous cell carcinoma
What does SSSS (staphylococcal scalded skin syndrome) spar ?
Mucous membranes
Type of reaction associated with codeine, aspirin and ACE inhibitors
Urticaria
Causing pink, itchy wheals
Drugs associated with the side effect of photosensitivity
Doxycycline, Bendroflumethiazide and NSAIDs
