[Dermatomyositis and livedoid vasculopathy as the initial manifestation of a tumor].

reactions, 5 had a history of atopic dermatitis. While some authors sustain that allergic contact dermatitis is less common in patients with such a history, others claim that it is equally common, and still others claim that it is more common.7 Whatever the case, we believe that patch testing could be a useful diagnostic aid in children with foot dermatitis, of allergic or other origin, in whom lesions do not improve with appropriate treatment.