Cutaneous polyarteritis nodosa in a child following hepatitis B vaccination.

sions. Moreover, our patient could be differentiated from papular acne scars, white fibrous papulosis of the neck and morphea guttate. The histological features of all of these diseases are distinct from those of PE. There is no consensus whether PE is a unique entity or just a special demonstration of nevus anesticus, eruptive collagenoma and a mild form of Buschke-Ollendorff syndrome [6]. We believe our patient adds another case supporting PE as a unique entity, according to Del Pozo et al. [4]. No systemic associations have been described with PE to date. Furthermore, there is no reliable treatment for PE. ■