Black ringworm

Introduction to Blackbird Tineanigra, also known as tineanigrapalmaris or keratomycosis nigricanspalmalis, is a superficial fungal disease that is transmitted by contact and occurs in the palmar palpebral. The clinical features are non-scaly black spots, biopsy, visible in the stratum corneum of the skin has a light brown separation of hyphae, hyphae thick, or curved or straight, sometimes spores at the end of the hyphae. You can diagnose. Topical antifungal treatment. basic knowledge Sickness ratio: 0.0001% Susceptible people: no specific population Mode of infection: contact infection Complications: Onychomycosis

Black sputum cause

Pathogen infection (35%):

In South America and North America, it is mainly caused by Vernik or Western-type sporozoites, and is mainly caused by Manson or Oriental sporozoites in Asia and Africa. The disease was originally thought to be a tropical disease, which is common in Central and South America, South America, Africa, and Asia. Recently, however, it has also been discovered in North America and Europe. It is good to commit people under the age of 19, but all age groups can get sick. The prevalence of men and women is 1:3, the course of the disease is often chronic, and many patients have excessive sweating. There have also been reports of the isolation of this bacterium in China recently.

Blackbird prevention

1. Pay attention to personal hygiene, develop a good bath, wash your hands and feet, and change the good hygiene habits of underwear and shoes.

2. Keep your skin dry.

3. Avoid contact with sputum patients and clothing, do not touch and play with rickets.

4. To reduce irritation to the feet, such as avoiding the use of chemicals and stimulating by physical biological properties. Patients should eat less tea, coffee, alcohol, etc. These drinks, etc., stimulate the secretion of sweat glands, creating a favorable environment for fungi to invade the skin.

5. Keep your skin dry and hygienic. Change your foot sock every day before going to bed. Do not use your hands to catch your feet. Keep your shoes in the sun. It is best not to wear rubber shoes.

6. When the itching is serious, do not scratch it with your hands. You can use it to stop itching and stick to the medicine until the skin is no longer peeling.

Black plaque complications Complications

Scales, macules.

Symptoms of black sputum common symptoms skin atrophy and pigmentation pigmentation skin lesions in the skin of the black sputum epidermis

The subjective symptoms of the rash are neither elevated nor scaly, and their boundaries are clear and often single. It starts to be mostly light brown, and then gradually spreads around and darkens black. Occasionally there are scales on the edges and the color is darker. It most often occurs in the palms and fingers, but it can also affect the sputum, neck and chest.

Black scorpion check

Direct microscopic examination of the fungus revealed brown branches (Wilnick's sporozoites) or no branches (M. sinensis) separating the hyphae, the spores were round or elliptical, and the culture could grow different mycobacteria.

Fungal culture: The material was inoculated on glucose peptone agar. At room temperature, the spores of Mycobacterium sinensis grew fast. The colonies showed a hemispherical bulge in 2 to 4 days. The surface was covered with black villous hyphae, the edges were neat, and the back was black. Nicotiana clausii grows slowly, grows in 5-6 days, is a black-lighted yeast-like colony, and has a central bulge in 2 to 3 weeks, with wrinkles, gray aerial hyphae on the surface, and a circle of yeast on the edge. The colonies grow and the colonies are larger.

Histopathology: biopsy showed that there were light brown-separated hyphae in the stratum corneum of the skin, the hyphae were short and thick, or curved or straight, and sometimes there were spores at the end of the hyphae.

Black sputum diagnosis

It can be diagnosed according to the clinical, but sometimes it is easily confused with malignant melanoma, metacarpal sputum, pigmentation of Addison's disease, hyperpigmentation after inflammation such as syphilis, and staining of chemical drugs and dyes. Generally, as long as the bacteria (10% to 20% direct smear of potassium hydroxide) find brown or dark green, many branches, separated hyphae and spores, especially the end of the hyphae often transparent color can be diagnosed.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.