Papule necrotizing tuberculous rash what disease is this?

summary

Papular necrotizing tuberculosis, also known as papular necrotizing tuberculosis, is characterized by scattered papules on the limbs, central necrosis, ulceration and scar formation. Patients often have tuberculosis lesions in the lung, lymph nodes, urinary tract or other parts, and their symptoms and signs are not obvious. Papule necrotizing tuberculous rash what disease is this? Next, I'd like to share my views with you.

Papule necrotizing tuberculous rash what disease is this?

The initial lesions were scattered papules with large millet to mung bean and hard texture. They often occurred in the hair follicles, reddish brown or purplish red, surrounded by narrow red halos. The boundary was clear, ranging from several to dozens. This papule can gradually subside after several weeks, leaving a temporary pigmentation.

But in most lesions, needle sized pustules appeared at the top of the papule after 1-2 weeks, and then gradually expanded, tissue necrosis and formation of small abscess. After drying, the surface was covered with adhesive brown thick scab. After the scab is removed, it presents a small ulcer in the central depression, such as crater.

Round or oval, large grains of rice to soybean, painless, chronic after. Sometimes a few necrotic papules nearby can form a larger ulcer, and the ulcer will not be plastic. After a few weeks or months, the necrotic papules or ulcers can gradually heal, leaving depressed atrophic scars and pigmentation.

matters needing attention

Health education should be strengthened to make young people understand the harm and infection mode of tuberculosis. Develop a good health habit of not spitting everywhere. The sputum of tuberculosis patients should be burned or disinfected with drugs. Physical examination should be carried out regularly for teenagers to achieve early detection, early isolation and early treatment. In addition, it is necessary to vaccinate infants with BCG on time, so that the body can produce immunity and reduce the incidence of tuberculosis.