skin amebiasis
Introduction
Introduction to cutaneous amebiasis Amebae is a single-celled protozoan belonging to the protozoa Menmen, which has the characteristics of lethal and dichotomous reproduction by pseudopods. Entamoebahistolytica can cause intestinal amebiasis, and can even invade the skin to cause amebic disease (AmebiasisCutis). basic knowledge Sickness ratio: 0.0001% Susceptible people: no special people. Mode of infection: contact with infection. Complications: genital itching irregular menstruation
Cause
Causes of cutaneous amebiasis
(1) Causes of the disease
The common pathogen is E. histolytica, which is the only pathogenic amoeba in the human body. The amebic disease of the skin can be caused by the following routes.
1. From the intestinal amebiasis and hepatic amoebic abscesses.
2. Caused by contact with the amoeba cyst via skin damage or other skin damage.
3. Amoebic allergic skin rash manifests as non-specific skin damage, such as eczema-like, pruritus-like, urticaria-like, itchy skin, hemorrhoids or scum-like or mucosal melanosis, etc. Amoeba protozoa.
(two) pathogenesis
The pathogen cannot invade the intact skin and must be invaded by bruises, cracks, cuts and surgical wounds to cause skin damage. Once invaded, the pathogen with proteolytic activity can cause widespread dissolution of the host tissue. Sexual necrosis becomes an abscess or ulcer.
Prevention
Skin amebiasis prevention
Prompt treatment of amoebic dysentery or liver abscess is an important prerequisite for preventing the development of cutaneous amebiasis. In popular areas, health education should be strengthened to eliminate the breeding grounds of flies and cockroaches, and to strengthen the management of water sources to prevent primary infections.
Pay attention to improve nutritional status and enhance physical fitness. Pay attention to your own food hygiene and environmental hygiene, strengthen the management of manure, and prevent feces from contaminating food and water.
Pay attention to the spread between sexual partners. Underwear is boiled and disinfected, and the spouse or partner, cohabiting family members are examined accordingly and necessary treatment.
Complication
Complications of cutaneous amoebiasis Complications, genital itching, irregular menstruation
The amebic trophozoites in the lysate can invade the vagina, cervix, and colon, causing inflammatory ulcers in these areas and amebic enteritis (dark red or jam-like, strange smell). Symptoms in the vagina and cervix are increased vaginal discharge, with viscous blood as a typical, some vaginal discharge yellow water, bleeding, and sometimes genital itching. If the lesion affects the cervix or uterus, there may be pain in the lower abdomen and irregular menstruation.
Symptom
Symptoms of cutaneous amoebia common symptoms abscess purulent secretion granuloma
Occurs in the vulva and its vicinity around the anus, buttocks or waist, etc., the damage can be impregnated wet, erosion, the surface is attached with mucous or purulent secretions, smelly, the central part can be necrotic, forming ulcers, ulcer edges are not complete , high, uneven surface, granuloma-like, hard, easy to bleed, or form a deep abscess, a sense of fluctuating, if it ruptures itself, ulcers or fistulas, such as due to visceral amoeba piercing the chest wall or Abdominal, or due to surgical drainage, infection caused by the skin around the drainage port, the skin lesions showed obvious inflammatory infiltration, hard, purple-red, clear boundary, and slightly higher than the skin surface, conscious pain.
Examine
Examination of cutaneous amebiasis
Laboratory tests, ulcer secretions, stool and damage biopsies can be found in amoebic trophozoites or cysts.
Histopathology: epithelial layer hypertrophy, dermal edema, vascular and lymphatic vessel dilatation, surrounded by lymphocytes, plasma cells, monocytes, neutrophils, etc., in the necrotic tissue can be found trophozoites, in the expanded lymph Trophozoites are also found in the tubes and blood vessels, and have a cytoplasmic eosinophilic diameter of 20 to 40 m, often containing vacuoles and red blood cells.
Diagnosis
Diagnosis and differentiation of cutaneous amebiasis
Generally, there is a history of intestinal amoebic disease, amebic trophozoites or cysts can be found in the feces, characteristic clinical manifestations; predilection sites; slow course of disease, long-term unhealed, anti-amebic treatment has good effect; laboratory Examination, ulcer secretions, stool and damage biopsies can be found in amoebic trophozoites or cysts.
It should be differentiated from condyloma acuminata, verrucous skin tuberculosis, epithelial tumor, syphilitic condyloma acuminata.
