IMPORTANCE Psoriasis and atopic dermatitis (AD) are inflammatory diseases thought to be mediated by helper T-cell subtypes 1 and 2 (TH1 and TH2), respectively. Although psoriasis and AD show histopathologic differences during chronic disease, they are difficult to distinguish histologically during erythrodermic exacerbations. OBJECTIVE To determine whether the immune phenotype of helper T cel...

Introduction: Erythroderma is a life-threatening condition which presents with redness, pruritus, erosions and painful fissures. These lesions are much more prone to infection. Atopic dermatitis chronic inflammatory of the skin characterized by itching, recurrent lesions, family history lichenification.

Acute generalized pustular psoriasis is an uncommon but dangerous form of psoriasis with a systemic presentation. Acute exacerbation, an early picture of acute generalized pustular psoriasis (AGPP), can be fatal, therefore, early recognition and systemic therapy is critical. It is an important differential diagnosis of erythroderma. Epidemiology, etiology, diagnosis, and treatment options are d...

Pityriasis rubra pilaris (PRP) is an uncommon erythematous papulosquamous disorder characterized by erythroderma, palmoplantar keratoderma and follicular hyperkeratosis. Although often exhibited at clinical meetings because of its rarity and difficulty in management, its etiology remains unknown. This article presents a review of this enigmatic disorder and subject of debate. Recent focus are a...

High resolution while maintaining high peak reflectivities can be achieved for Lamellar Multilayer Amplitude Gratings (LMAG) in the soft-x-ray (SXR) region. Using the coupled waves approach (CWA), it is derived that for small lamellar widths only the zeroth diffraction order needs to be considered for LMAG performance calculations, referred to as the single-order regime. In this regime, LMAG pe...