Overview. Dermatitis is a common condition that causes swelling and irritation of the skin. It has many causes and forms and often involves itchy, dry skin or a rash.

2016年3月30日 · Acute febrile neutrophilic dermatosis may affect previously healthy individuals, but often arises in the context of an acute systemic infection or an underlying chronic condition. What causes acute febrile neutrophilic dermatosis? The exact cause of acute febrile neutrophilic dermatosis is unknown.

Dermatosis papulosa nigra also occurs among dark-skinned Asians and Polynesians, but the exact frequency is unknown. Females are more frequently affected than males. Dermatosis papulosa nigra usually begins in adolescence. The incidence, number and size of lesions increases with age. What is the cause of dermatosis papulosa nigra?

Subcorneal pustular dermatosis is also known as Sneddon-Wilkinson disease. It is a rare condition, characterised by pustules that appear in crops over months or years. In some cases, subcorneal pustular dermatosis may be later diagnosed as generalised pustular psoriasis; generalised pustular psorasisis tends to be a more serious condition.

Erythema dyschromicum perstans is also called ashy dermatosis (of Ramirez), because of its colour. The pigmented patches may be symmetrical in distribution or unilateral. Early lesions may be reddish in colour, often with a more pronounced border, and they may be somewhat elevated. This phase is not always observed.

How can transient acantholytic dermatosis be prevented? Keep cool and wear garments designed to prevent sweat rash. If using a BRAF-inhibitor, the addition of a MEK-inhibitor seems to protect against the development of transient acantholytic dermatosis. What is the outlook for transient acantholytic dermatosis?

2023年12月19日 · Learn to identify types of dermatitis by how the skin looks. Examples include atopic dermatitis, contact dermatitis and seborrheic dermatitis.

A neutrophilic dermatosis may be seen in isolation or more than one type may occur in the same individual. Neutrophilic dermatoses often arise at the site of injury such as a needle prick, biopsy or insect bite. This reaction to injury is known as Koebner phenomenon, or isomorphic response.

Neutrophilic dermatosis of the hands is often diagnosed clinically. A skin biopsy is usually performed to confirm it. Diagnostic histopathological features of a dense infiltrate of polynuclear neutrophil inflammatory cells (neutrophils) without true vasculitis. Blood tests in patients with neutrophilic dermatosis of the hands may reveal:

Eosinophilic dermatosis of hematologic or haematological malignancy (blood cancer) is a rare skin eruption seen in patients with underlying haematological malignancy. It was first termed as exaggerated arthropod bite lesions , as the clinical and histological features resemble arthropod bites , with prominent eosinophilia (increased numbers of ...