0203 389 6076    

Actinic prurigo

A chronic, intensely itchy photodermatosis featuring excoriated papules and nodules on sun-exposed skin, often with associated cheilitis.

Bloom syndrome

A rare genetic disorder with sun-sensitive telangiectatic erythema on the face, short stature, and an increased risk of cancer.

Chronic actinic dermatitis

A severe, persistent, eczematous photosensitivity reaction to a broad spectrum of UV and visible light, leading to marked lichenification of exposed skin.

Erythropoietic porphyria

Congenital erythropoietic porphyria (Günther's disease) causes severe photosensitivity from birth with blistering, skin fragility, red-stained urine, and erythrodontia (red teeth).

Erythropoietic protoporphyria

A porphyria causing immediate, painful, burning and stinging sensations on sun exposure, leading to erythema and edema but minimal blistering.

Hydroa vacciniforme

A rare childhood photodermatosis, linked to EBV, with recurrent vesicles and papules on sun-exposed skin that heal with characteristic vacciniform (smallpox-like) scars.

Juvenile spring eruption

A benign photodermatosis in boys, presenting as an itchy, papulovesicular eruption on the helices of the ears in the spring.

Photoallergic drug reaction

A delayed, cell-mediated, eczematous reaction that is strictly limited to sun-exposed areas, caused by a drug that becomes an allergen after UV exposure.

Photocontact dermatitis

An inflammatory reaction caused by a substance on the skin plus UV light, which can be phototoxic (like phytophotodermatitis) or photoallergic.

Phototoxic drug reaction

A non-allergic reaction resembling an exaggerated sunburn, with erythema and sometimes blistering, strictly confined to sun-exposed areas.

Polymorphic light eruption

The most common photodermatosis, presenting as a delayed, itchy eruption of various morphologies (papules, plaques, vesicles) on sun-exposed skin after the first intense sun exposure of the season.

Porphyria cutanea tarda

The most common porphyria, causing skin fragility, vesicles, and bullae on sun-exposed areas (especially the hands), which heal slowly with milia and hyperpigmentation.

Pseudoporphyria

A drug-induced condition (e.g., from NSAIDs) that clinically mimics porphyria cutanea tarda with skin fragility and bullae, but with normal porphyrin levels.

Rothmund Thompson syndrome

A rare genetic disorder with a characteristic poikilodermatous (atrophy, telangiectasia, pigment changes) photosensitive rash in infancy, skeletal abnormalities, and increased cancer risk.

Solar urticaria

A rare physical urticaria where pruritic wheals (hives) develop within minutes of sun exposure and resolve quickly once out of the sun.

Sunburn

An acute, painful, erythematous inflammatory reaction of the skin following overexposure to UV radiation.

Varigate porphyria

A porphyria with both the blistering skin photosensitivity of porphyria cutanea tarda and the acute neurovisceral attacks of acute intermittent porphyria.

Xeroderma pigmentosum

A genetic DNA repair disorder that leads to extreme sun sensitivity, severe burning, and the very early development of numerous skin cancers.

Back to home