Reactions to external agent images

Autoimmune progesterone dermatitis: dermatitis presentation 

Pyoderma gangrenosum 

Erythema multiforme 

Fracture of humerus 

Chronic plaque psoriasis 

Drug eruption 

Chronic actinic dermatitis 

Hydroa vacciniforme 

Lid angioedema 

Solar comedones 

Linear lesions due to Koebner phenomenon in lichen planus 

Smoking and discoid lupus erythematosus 

Target lesions 

Hydroa vacciniforme 

Car mechanic 

A phototoxic drug eruption due to an oral non-steroidal anti-inflammatory drug 

Cold urticaria 

Allergic contact dermatitis due to perfume in aftershave 

Type 2 

Hair dye reaction 

Discoid LE 

10 days after fluoride burn 

Day 1 

Drug-induced subacute lupus erythematosus 

Severe lip angioedema 

Scombroid rash 

Artificial leg 

Spontaneous urticaria 

Photosensitivity 

Eyelid dermatitis due to airborne compositae allergy 

Hand dermatitis in hairdresser 

Solar urticaria 

Intraepithelial carcinoma on amputation stump 

Persistent swelling middle phalanx index finger 

Venous eczema 

Interstitial granulomatous dermatitis 

Marked wrinkling of the palmar skin after 5 minutes of immersion - it was accompanied by pain and itch (AWP-patient2)

Lip cancer (squamous cell carcinoma) 

Cold urticaria provoked by ice cube 

Redness and swelling due to a bee sting 

Pustular reaction 

Papilloma 

Paronychia 

Targetoid lesion in urticarial vasculitis 

Targetoid lesion in Finkelstein vasculitis 

Moderate 

Cold urticaria 

Hydroa vacciniforme 

Infected hand 

Chronic actinic dermatitis 

Image from Dr S Janjua 

Urticarial vasculitis 

Severe 

Drug-induced subacute lupus erythematosus 

Leukoderma due to protein kinase inhibitor 

Hypersensitivity vasculitis 

Callus formation on amputation stump 

Skin picking due to methamphetamine 

Close-up papilloma 

Erythema multiforme of lips 

Cholinergic urticaria 

Enlarging weal 5 minutes later 

Cutaneous adverse reaction to anticonvulsant, toxic epidermal necrolysis (TEN) 

Sweet syndrome 

Photoallergic contact dermatitis due to a chemical sunscreen 

Mild 

Atopic eczema 

Urticarial vasculitis 

Day 5 

Diffuse facial pigmentation due to a phenothiazine 

Extensive papular and plaque polymorphic light eruption 

Interstitial granulomatous dermatitis 

Latex reaction 

Unknown cause 

Discoid LE 

Lip involvement in erythema multiforme 

Flushing 

Dermatitis following influenza vaccine 

Urticaria 

Fracture blister histology 

Hydroa vacciniforme 

Sweet syndrome 

Bee sting reaction 

Pressure urticaria 

Neutrophilic dermatosis associated with rheumatoid arthritis 

Linear lesions due to Koebner phenomenon in lichen planus 

Marked wrinkling of the palmar skin after 5 minutes of immersion - it was accompanied by pain and itch (AWP-patient2)

Pustular vasculitis 

Toxic epidermal necrolysis 

Polymorphic eruption of pregnancy PUPPP 

Pressure urticaria 

Early urticated swellings from jellyfish stings  

Squamous cell carcinoma on limb of amputee 

Ear cancer (squamous cell carcinoma) 

Angioedema of the feet 

Venison reaction 

Spreading autosensitisation reaction 

Drug eruption 

Lichenoid drug eruption 

Bullous pemphigoid 

Squamous cell carcinoma 

Hand dermatitis in hairdresser 

Sunburn 

Oral leukoplakia 

Scombroid rash 

Actinic prurigo 

24 hours after fluoride burn 

A photosensitive drug eruption showing sparing under the watch and strap 

Cold urticaria 

Allergic contact dermatitis to rubber 

Target lesion 

Nonspecific hand dermatitis 

Phototype I 

Sweet syndrome 

Drug-induced subacute lupus erythematosus 

Toxic epidermal necrolysis 

Car mechanic 

Lichenoid drug eruption 

Toxic epidermal necrolysis 

Food handlers 

Dermographism 

Molluscum contagiosum affecting amputation stump 

Bee sting reaction 

Peeling after sunburn 

Abscess 

Pyoderma gangrenosum 

Toxic epidermal necrolysis 

Smoking and discoid lupus erythematosus 

Angular cheilitis 

Telangiectasia eruptiva macularis perstans 

Cutaneous adverse reaction to anticonvulsant, erythema multiforme target lesions 

Sunburned earlobe following minimal sun exposure due to vemurafenib 

Food handlers 

Morbilliform rash 

Erythema multiforme 

Widespread tinea corporis 

Cigarette burns 

Hand dermatitis due to wet work 

Pressure urticaria 

Angioedema and facial urticaria 

Basal cell carcinoma 

Cheilitis 

Juvenile spring eruption 

Seborrhoeic dermatitis 

Actinic cheilitis 

Contact dermatitis to adhesive plaster 

Smoking and hidradenitis suppurativa 

Lichenoid reaction to red tattoo pigment 

Arsenical keratoses 

Plant contact dermatitis 

Applying colour in a salon 

Seborrhoeic eczema 

Ulceration and dermatitis 

Oven burns 

Target lesions 

Pyoderma gangrenosum 

Pressure-induced purpura 

Smoking and psoriasis 

Early serpiginous lesions showing swelling and scale after box jellyfish stings on the arm 

Plant contact dermatitis 

Pemphigoid gestationis 

Occupational hand dermatitis 

Dermal contact dermatitis 

Sweet disease 

Wells syndrome 

Smoking and discoid lupus erythematosus 

Solar urticaria 

Erythema multiforme 

Wells syndrome 

Hand dermatitis in hairdresser 

Plant contact dermatitis 

Irritant contact dermatitis 

Sweet syndrome 

Purpura due to heparin-induced thrombocytopenia 

Urticarial vasculitis 

Ice applied to normal skin 

Dermatitis 

Linear lesions due to Koebner phenomenon in lichen planus 

Close-up of positive reaction 

Smoker's lines 

Facial redness 

Bullous pemphigoid 

Stevens Johnson Syndrome 

Photosensitivity 

Lichenoid reaction to red tattoo pigment 

Erythema multiforme 

Erythema multiforme 

Rosacea 

Positive patch test to PPD 

Erythema multiforme 

Flagellate erythema 

Car mechanic 

Dry skin due to vemurafenib 

Pemphigoid gestationis 

Dermal contact dermatitis 

Rash caused by acne cleanser 

Microgeodic disease 

Antiphospholipid syndrome 

Neutrophilic eccrine hidradenitis 

Chronic actinic dermatitis 

Targetoid lesion in fixed drug eruption 

Pyoderma gangrenosum 

Smoking and hidradenitis suppurativa 

Drug eruption 

Targetoid lesion in erythema annulare centrifugum 

Drug eruption 

Purple stain is gentian violet 

Pustular vasculitis 

Fracture blister 

Morbilliform drug eruption 

Flagellate erythema 

Occupational hand dermatitis 

Pigmentation 2 weeks' later 

Nail shedding 

X-ray 

Target lesion 

Dermatitis following influenza vaccine 

Smoking and psoriasis 

Squamous cell carcinoma / cutaneous horn 

Red henna temporary tattoo 

Urticaria 

Purpura due to heparin-induced thrombocytopenia 

Targetoid lesion in urticarial vasculitis 

Hand dermatitis due to rubber allergy 

Black hairy tongue 

Burns from hot water bottle 

Insect bites 

Early serpiginous lesions showing swelling and scale after box jellyfish stings 

Herpes simplex labialis associated with erythema multiforme 

Pyoderma gangrenosum 

Hyperpigmentation on the lip after resolution of an acute fixed drug eruption 

Erythema annulare centrifugum 

Urticaria pigmentosa: brown spots that urticate 

Papular reaction 

Target lesions 

MRI 

A failing full-thickness skin graft - graft survival is poorer in people who smoke 

Interstitial granulomatous dermatitis 

Urticarial vasculitis 

Skin cancers 

Ichthyosis 

Erythema multiforme 

Smoking and its effects on the skin 

Smoking and hidradenitis suppurativa 

Insect bites 

Rash due to vemurafenib 

Oral candidiasis 

Necrotising fasciitis 

Hair dye reaction 

Actinic keratoses 

Phototype IV 

Venous ulcer 

Urticaria pigmentosa in an adult 

Black henna temporary tattoo 

Orange-yellow palms of carotenoderma 

Angioedema of the right hand  

Purpuric morbilliform eruption due to thrombocytopenia 

Prick testing 

Phototype III 

Lip involvement in erythema multiforme 

Folliculitis due to vemurafenib 

Dry skin 

PUPPP polymorphous eruption of pregnancy 

Peeling after sunburn 

Pseudoporphyria 

Erythema multiforme 

Drug eruption 

Lichenoid drug eruption 

Symblepharon 

Occupational hand dermatitis on fingertip 

Smoking and its effects on the skin 

Morbilliform eruption 

Fixed drug eruption 

Actinic prurigo 

Diabetic foot ulcer 

Eye involvement in erythema multiforme 

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Acute neutrophilic dermatosis 

The typical transient wheals of cholinergic urticaria - triggers include exercise, heat and stress 

Hydroa vacciniforme 

Hyperpigmentation and raindrop hypopigmentation 

Perniosis affecting amputation stump 

Orf and EM 

Keratoderma due to vemurafenib 

Erythema multiforme 

Food handlers 

Drug eruption 

Papilloma due to vemurafenib 

Eczema due to dry skin 

Favre-Racouchot syndrome 

Alopecia due to vemurafenib 

Pyoderma gangrenosum 

Occupational hand dermatitis 

Red patch on removal of ice 

Dermatitis 

Painful red, callused palms due to protein kinase inhibitor 

Image from Dr S Janjua 

Nummular dermatitis 

Orf and EM 

Spontaneous urticaria 

Dyspigmentation 

Target lesion 

Vasculopathy affecting amputation stump diabetic 

Wells syndrome 

Bullous pemphigoid 

Acute dermatitis affecting amputation stump 

White mark 2 weeks' later 

Drug-induced photosensitivity 

Urticaria 

PUPPP polymorphous eruption of pregnancy 

Erythema multiforme of eye 

Candida nail infection 

Erythema multiforme major 

Erythema multiforme 

Sunburn 

Purpuric eruption 

Hydroa vacciniforme 

Bleomycin-induced flagellate hyperpigmentation 

Solar urticaria provoked experimentally 

Urticaria 

Allergic contact dermatitis to rubber 

Insect bites 

Lupus tumidus 

Follicular keratosis 

Shampooing in a salon 

Gingival hyperplasia 

Solar comedones 

Dryness due to ageing 

Patch tests positive to rubber glove 

Erythema multiforme 

Dermal contact dermatitis