Pityriasis rubra pilaris (Devergie's disease) is an idiopathic, papulosquamous inflammatory dermatosis characterized by progressive erythrodermia. The etiology of the disease unknown, and most cases occur sporadically. Viral infections, impaired vitamin A metabolism, medications, autoimmune reactions, malignancies are common triggering factors. diagnosis Devergie's based on clinical manifestati...

Pityriasis rosea (PR) is an acute, self-limited papulosquamous dermatosis localized on the trunk and extremities, that affects otherwise healthy adolescents and young adults. Although the classic presentation is readily recognized, atypical forms may present a challenge. Many atypical forms of the disease have been reported in the literature.[1]We report two cases with atypical features. Involv...

The identification of one or several hypochromic patches (HP) on the skin is a key stage in the diagnosis of leprosy on dark skin. However, HP are often caused by other disorder than leprosy. A study to determine the prevalence and causes of HP among children was carried out in a rural area of Mali in November 2001. All children under 15 years of age in two villages in an endemic area were scre...

A 32-year-old male with febrile ulceronecrotic Mucha-Habermann disease (FUMHD) responsive to methotrexate is reported. This is a severe variant of pityriasis lichenoides et varioliformis acuta characterized by the acute onset of a widespread ulceronecrotic cutaneous eruption together with high fever and systemic involvement. To our knowledge, only 13 patients with FUMHD have been reported to date.