Proliferative dermatitis

Introduction to proliferative dermatitis Proliferative dermatitis (dermatitisvegetans), also known as proodermavegetans or benign pemphigus (benignpemphigusvegetans), is a chronic pyoderma with proliferative damage. basic knowledge Sickness ratio: 0.0004% Susceptible people: no specific population Mode of infection: non-infectious complication:

Cause of proliferative dermatitis

(1) Causes of the disease

It is generally believed to be associated with a variety of bacterial infections when the body's immune function is low or inhibited. Systemic malnutrition, scratching and other external stimuli can also induce the disease. Some patients may be associated with ulcerative colitis.

(two) pathogenesis

It is generally believed that it is associated with a variety of bacterial infections in the low or immune state of the body, and systemic malnutrition, scratching and other external stimuli can also induce the disease.

Proliferative dermatitis prevention

1. In the units prone to pyoderma (such as some factories, agricultural machinery stations, primary schools, etc.), extensive publicity and education on the prevention and treatment of suppurative skin diseases, regular preventive inspections, as far as possible to eliminate all factors.

2. Pay attention to skin hygiene, strengthen physical exercise and increase skin resistance.

3. Maintain the integrity of skin function. For skin diseases, especially pruritic skin diseases, timely treatment should be carried out to prevent skin damage and avoid irritation such as scratching and skin friction.

4. Clothes, towels, basins, etc. are prohibited from public use to prevent contact with infection. The patient should be properly isolated. The dressings and contact materials used by the patient should be strictly disinfected or burned. During the illness, it is forbidden to use the liquid to clean the skin lesions. Wash the affected area with tap water to prevent extension.

5. When you are sick, you should ban alcohol or spicy food, and eat less food.

Proliferative dermatitis complications Complication

Generally no complications.

Proliferative dermatitis symptoms Common symptoms Granuloma congestion hypertrophic stratum corneum thickening skin pigmentation deepening mouth inflammation pustules

The damage mainly occurs in the scalp, armpits, genital area, groin, lip red or oral mucosa. The miliary size pustules that are basally congested at the beginning can be fused into a piece, and the pustules are clotped after rupture, and the underarm is a proliferative granulation. Swollen, often occurs in the red lips of the lips with papillary lesions, proliferative septic stomatitis (pyostomatitis vegetans), often secondary to eczema or dermatophytosis secondary to purulent infection, chronic disease, but self-healing There is temporary pigmentation left behind.

Proliferative dermatitis

Histopathology: There is pseudoepithelial neoplasia in the epidermis, a large number of non-specific granuloma changes such as lymphocytes and plasma cells in the dermis, and abscess formation. Exudate bacterial culture and special staining of tissues can find pathogens, often coagulation. Enzyme-positive staphylococci.

Diagnosis and differentiation of proliferative dermatitis

Diagnosis can be based on clinical manifestations and examinations.

Differential diagnosis

1. The primary damage of proliferative pemphigus is blister rather than pustule or eczema. Antibiotic treatment is ineffective and has a special histopathological image.

2. Sickle skin tuberculosis also has sputum-like proliferation or miliary small abscess, but the initial round or oval-shaped brown-red infiltrating plaque, the surface is rough, papillary, grayish white scales; tuberculin test positive The histopathology is tuberculosis structure, and anti-tuberculosis treatment is effective.

3. Coloring buds have a history of trauma, often localized, occur in the calf and foot, inflammation is more obvious, direct microscopic examination of pus smear can be seen single or 3,5 groups of brownish yellow circles Thick-walled spores, which contain coarse pigmented granules.

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