Photosensitive Atopic Dermatitis Exacerbated by UVB Exposure

Conclusion

Photosensitive AD is a rare entity characterized by a photodistributed rash and involvement of non–sun-exposed skin. Patients will either have a history of AD or fulfill the criteria of AD. They have positive photoprovocation testing and generally have a normal MED. They may have positive photopatch testing with coexisting photoallergies. Histopathology is nonspecific but shows spongiotic dermatitis with perivascular lymphohistiocytic infiltrate. Diagnosis is essential, as this disease can be life altering and affect quality of life. Effective treatment options are available, and the therapeutic ladder is based on severity of disease.^2,5