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Favre-Racouchot disease commonly presents as comedones, cysts and elastosis in the periocular region of older men. Its etiology has been linked to several exogenous factors. Here we present 2 patients with strictly unilateral manifestation of the disease and a corresponding history of predominantly one-sided chronic occupational sun exposure and smoking, making the case for the causative role of these two factors., (Copyright © 2013 S. Karger AG, Basel.)

Background: Even after the description of papuloerythroderma of Ofuji (PEO) in 1984, little is known about this clinical entity., Objective: To report on 2 new cases of PEO and review of the worldwide literature on this topic., Methods: Article citations were searched on several biomedical search engines (PubMed, EMBASE, SCOPUS, Google Scholar). Papers were retrieved either online or in print., Results: A grand total of 170 PEO cases were identified. Most patients were older than 55 years and of Asian or white descent, with an overall male/female ratio of 4.0. Itch and the deck-chair sign were observed in all patients. Peripheral eosinophilia, lymphocytopenia and increased serum IgE were common findings. Histopathology mostly showed aspecific inflammation, while 17 showed histological features of cutaneous T-cell lymphoma (CTCL). Atopy, malignancies, infections and drugs were rarely linked to PEO., Conclusion: PEO represents a rather monomorphous entity both clinically and, with the remarkable exception of CTCL, also histologically. Nonetheless, no causative factor could be identified in the vast majority of cases. An etiological classification and diagnostic criteria are proposed in the attempt to contribute framing this puzzling clinical entity., (Copyright (c) 2010 S. Karger AG, Basel.)

In 1996, English and McCollough described an unusual entity in 2 sisters characterized by a transient and recurrent keratoderma exclusively on the palms after water exposure. The condition developed 3-5 min after exposure to water and resolved within a short time after drying. This finding was associated with a tightening sensation. Yan et al. coined the term 'aquagenic palmoplantar keratoderma', and the designation 'aquagenic syringeal acrokeratoderma' was suggested by MacCormack et al. Until now, a total of 8 cases have been reported. We documented 2 new cases with acquired aquagenic syringeal acrokeratoderma. A 25-year-old female had observed within the last 3 months a burning sensation on the palms after some minutes of water contact. Physical examination revealed a perfectly normal skin on the palms. Three minutes after water immersion of 20 degrees C, a whitish discoloration appeared on the palms and a thickening of the palmar skin was visible. In addition, the eccrine pores were much more prominent. Few minutes after drying the skin, the situation returned to a normal state. The second patient, a 33-year-old female noticed a painful whitish discoloration of the skin on the palms after a short period of water immersion. Sometimes the white skin could be peeled off. In the last year, hyperhidrosis developed, and a more reddish aspect of the palms appeared. In our office after rinsing the hands with water at room temperature, a whitish discoloration in the center of the palms appeared which was associated with a painful sensation. After drying, the whitish lesions disappeared almost completely within 30 min. Aquagenic palmar keratoderma describes an acquired and transient condition which occurs after brief exposure to water and disappears after drying within minutes to an hour. Only rarely may a slight hyperkeratosis remain for a longer time. The possible pathophysiology and treatment options are discussed., (Copyright 2002 S. Karger AG, Basel)

We describe a 34-year-old woman presenting with a 1-year history of asymptomatic, atrophic papules disseminated mainly on the trunk. The clinical features were characteristic of malignant atrophic papulosis, and the histopathologic features were confirmatory. The etiology of this rare condition, described for the first time in 1941, remains unknown. Also the pathogenesis is still controversial. A vascular disorder has been postulated by most authors, primary inflammatory or thrombotic vascular changes as well as primary endothelial proliferation being often mentioned in the literature. In the present case, the biopsy specimen of a recent efflorescence showed these three alterations all together, making it impossible to identify conclusively the primary event. Thrombosis, being already noticed in such early lesions, is likely to be of pathogenic importance. Rheological therapy as described in the literature may therefore be the most appropriate. In the present case, the lesions came spontaneously to a standstill without drug therapy.

We describe a case of primary infection by human parvovirus B19 in a 20-year-old woman; it manifested as erythemato-maculo-papular lesions, pharyngotonsillitis, lymphadenopathy, fever, arthralgia and myalgia, asthenia and anorexia. Laboratory tests revealed anaemia, leucopenia, thrombocytopaenia and a rise in some inflammatory indices. Elisa test was positive for anti-human parvovirus B19 IgM. Clinical symptoms spontaneously regressed in 2 weeks. Thirty days after hospital admission all the laboratory tests returned to normal values; furthermore, specific IgM and IgG were detectable.