DDx
Diagnostic Considerations
Other problems to be considered in the differential diagnosis include the following [33] :
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Actinic prurigo
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Allergic contact dermatitis to airborne substances
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Hydroa aestivalis and vacciniforme
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Chronic actinic dermatitis
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Porphyria cutanea tarda
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Protoporphyria
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Polymorphous light eruption
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Solar urticaria
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Herpes viral infection
Differential Diagnoses
Media Gallery
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A 37-year-old white woman presented to the clinic complaining of a rash on the medial part of her right thigh and left arm that was acquired after clearing some weeds in her yard. A phototoxic combination of sunlight and a psoralen-containing plant produced this bizarre linear vesicular eruption.
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Closer clinical view of bizarre angulated vesicular streaks, which occurred after contact with a plant and ultraviolet light exposure.
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A 26-year-old female airline flight attendant exposed to lime while serving drinks en route to the Caribbean. During the Caribbean layover, she had significant sun exposure. The combination of lime juice and sun exposure led to a drip-pattern blister formation on the dorsal forearm consistent with phytophotodermatitis. This picture clearly delineates the potential severity of phytophotodermatitis with extensive blister formation.
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The 2-month follow-up photo of the patient above demonstrates the potential postinflammatory pigmentation changes and scarring that may occur with severe blistering of phytophotodermatitis.
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Close-up view of vesicular linear streaks with morphology suggestive of scattered foci of epidermal necrosis.
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Queen Anne's lace, a member of the Umbelliferae family of plants, is well known to produce a furocoumarin-induced phototoxic eruption.
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Ficus. The common fig contains furocoumarins and should be considered amidst the list of potential offending agents that cause phytophotodermatitis.
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