<unk>  <unk>  is a clinically distinct subset of cases of<unk><unk>  that is most often present in white women aged 15 to 40, consisting of skin lesions that are scaly and evolve as polycyclic annular lesions or psoriasiform plaques.
Characteristically the lesions appear in sun-exposed areas such as the vee of the neckline or the forearms, but not the face. It may be brought on by sun-sensitizing medications, but is usually associated with autoimmune disorders such as rheumatoid arthritis and Sjögren's syndrome.
Treatment generally involves sun avoidance/protection and topical corticosteroids. Sometimes systemic drug treatment is necessary. Besides corticosteroids other immunosuppressants such as methotrexate are also used.
Lesions of<unk>  may have an annular configuration, with raised red borders and central clearing.
Subacute cutaneous lupus erythematosus
Toxic epidermal necrolysis
Polymorphous light eruption
Stevens-Johnson syndrome
Pemphigus vegetans
Factitious dermatitis
Drug-induced lupus erythematosus
Drug eruption