Dermatitis - Symptoms and causes - Mayo Clinic
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.
Subcorneal pustular dermatosis (Sneddon-Wilkinson disease)
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.
Neutrophilic dermatoses
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.
Erythema dyschromicum perstans (ashy dermatosis)
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.
Dermatosis papulosa nigra
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?
Erosive pustular dermatosis
Erosive pustular dermatosis has been reported as an adverse effect of epidermal growth-factor receptor inhibitors, such as gefitinib. What is the cause of erosive pustular dermatosis of the scalp? The cause of erosive pustular dermatosis of the scalp is unknown. However, it appears to relate to sun damage.
Terra firma-forme dermatosis
Terra firma-forme dermatosis is a clinical diagnosis that should be suspected in children and adolescents with dirty-appearing areas, particularly on the neck, which cannot be removed with soap. Wiping affected areas with a pad soaked in 70% isopropyl alcohol will completely remove the lesions and is simultaneously diagnostic and therapeutic [7].
Acute febrile neutrophilic dermatosis (Sweet Syndrome): An …
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.
Dermatitis: Types and treatments — DermNet
Dermatitis refers to a group of common itchy inflammatory skin conditions characterised by epidermal changes. Dermatitis has many causes and affects one in every
Types of dermatitis (dermatitis pictures) - Mayo Clinic
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.