Tuberculous lichen
Introduction
Introduction to tuberculous moss LichenTuberculosus is a lichenscrofulosorum, a follicular papule that occurs in groups on the trunk and limbs. Also known as disseminated hair follicular skin tuberculosis (tuberculosiscutisfollicularisdisseminatus). basic knowledge The proportion of illness: 0.005% Susceptible people: no specific population Mode of infection: non-infectious Complications: conjunctivitis
Cause
Tuberculous moss cause
It is considered to be a type of tuberculosis, which occurs mostly in children and young people. Patients often have lymph nodes, bones, joints and other skin tuberculosis. Tuberculin test is positive, but tubercle bacilli are often not found in rashes. This disease occurs when a highly reactive person is injected with tuberculin.
In recent years, schuhmachers reported that the disease is similar to the generalized papular ring granuloma.
Prevention
Tuberculous moss prevention
Patients should pay attention to general health and nutrition, find tuberculous lesions and treat them appropriately.
Complication
Tuberculous moss complications Complications conjunctivitis
Patients often have a history of lymph nodes, bones, joint tuberculosis or other skin tuberculosis; lesions are often distributed symmetrically on the torso or extremities, especially in the shoulders, waist, and buttocks. No symptoms, occasionally mild itching. The disease is chronic, up to several months or years, and the pimples can naturally subside. After disappearing, there is no trace or temporary pigmentation. But the disease can be re-issued. A small number of patients may be associated with herpetic conjunctivitis.
Symptom
Tuberculous mossy symptoms Common symptoms Pustular scaly papules itching
The round small papules from the needle to the millet are often found in the trunk and limbs. The shoulders, the waist and the buttocks are the most common. The papules are spread at the beginning, and then gradually become elliptical, round or ring-shaped, and the papules often appear in the hair follicles. At the mouth, the tip is slightly pointed or flat, with horny small spines, often with a little scaly scale, pimples are normal skin color or reddish, some patients have small pustules at the top of the papules, without any symptoms, some patients are light Itching.
After the disease has been slow, after a few months or years, the papules naturally disappear, leaving no traces or temporary pigmentation after the regression, but the disease can be recurred.
Examine
Tuberculous moss examination
Tuberculosis infiltration near the upper hair follicle of the dermis, mainly epithelial-like cell population, with or without lymphocytes, occasionally macrophages, no cheese-like necrosis, degeneration of hair follicle epithelial cells, due to excessive keratinization, formation of angle plugs in the hair follicle.
Diagnosis
Diagnosis and identification of tuberculous moss
According to the moss-like papules symmetrically distributed in the trunk, there is no self-conscious symptoms. Combined with the history of tuberculosis and pathological changes in the past, the general diagnosis is not difficult, but it needs to be differentiated from the following diseases:
1. Vitamin A deficiency is a small papule of keratosis of the hair follicle. There is a horny plug in the center, which occurs mostly in the extremities of the extremities, and is often accompanied by symptoms such as night blindness and corneal softening.
2. Small stalks of sacral follicular keratosis of small papules are integrated in the neck and buttocks without any symptoms.
3. Luster moss damage is a round flat papule of small rice grain size, normal skin color, each independent and not polymerized, the surface is smooth and has a shimmering luster, mostly occurs in the abdomen and buttocks, no symptoms.
4. Papular eczema is red papules, often accompanied by blisters, erythema, acute attacks, severe itching.
