Lichen nitidus

Lichen nitidus's disease overview

What is

lichen?

Lichen is a basic lesions on the skin manifested by a thick, dark skin with chronic itching. Lichen is a skin disease that is not dangerous but lasts long and easy to relapse.

What is

lichen nitidus?

lichen nitidus or flat lichen is a benign, chronic dermatitis with characteristic lesions that are flat nodules, usually purple (sometimes pink, brown) polygon, have clear limits, have clear limits, The lumpy surface is usually smooth, sometimes slightly sunken and has sticky scales. The lumps are linked into large, round or oval or zigzag arrays.

Lesions are common in every position but often meet the front of the wrist, forearm, the front of the leg, the waist area, not rarely seen in the soles of the feet, hands. There are also some people with flat likes but lesions in the mucosa. Sometimes the lesions in the mouth without skin lesions.

Expression on the skin, Lichen Planus usually appears in the form of purple, itching, flat acne for several weeks. In the mouth, the vagina and other areas are covered with mucous membranes, Lichen Planus forms white patches, sometimes painful ulcers.

Most people can manage the typical, light cases of Lichen Planus at home, without medical care. If the condition causes pain or itching significantly, you may need prescription medication. Lichen Planus is not infected.

Lichen Planus may be difficult to manage on the vulva and in the vagina, causing intense pain and sometimes leaving scars. Sexual dysfunction can become a long -term complication. Oral ulcers can affect your eating ability. The affected skin may be slightly darker even after the rash, especially in the dark skin.

mouth lichen increases the risk of oral cancer. If not treated, the lichen of the ear canal can lead to hearing loss.

About 0.5-1% of the population is infected with the ratio between men and women. The age is common from 30-60 years old and rarely encountered in children. The disease can be acute or chronic for a long time, many years and can be stable.

Causes of Lichen nitidus's disease

lichen nitidus occurs when your immune system attacks skin cells or mucous membranes. It is not clear why this abnormal immune response occurs. This condition is not infected.

The cause is not really clear, there are some factors that are thought to be the cause of flat calendar including:

  • Auto immunity phenomenon : The immune system works excessively and produces too much antibodies that cause the patient's skin to be affected. Jeremy Fenton, pharmacist and medical expert at Schweiger Dermatology - New York said, this is one of the disorders of the immune system, also known as autoimmune syndrome, the main agent causing Flat lichen.
  • Side effects of some drugs : Flat lichen can also occur due to the body reacting with some drugs. Heart, arthritis, high blood pressure, malaria, diabetes, analgesics, anti -inflammatory and antibiotics are one of the products that can cause this disease.
  • The metal reaction in the mouth : Mainly appearing in women and middle -class people, the disease often occurs after you have been treated for treatment. Restoring teeth with amalgam. This substance can be the cause of flat lichen.

    • Hepatitis C : To prevent it, once you have a flat lichen, check if you have hepatitis C or not. While hepatitis C is difficult to diagnose by the symptoms that often appear late, the flat lichen is the perfect solution to help patients detect hepatitis C and timely treatment.

  • Virus infection : A few types of flat lichen are caused by the Epstein-Barr virus, Cytomegalovirus, Varicella Zoster, Herpes, Human Papilloma, even HIV. However, these agents are not as popular as hepatitis c.
  • Stress: Those who suffer from depression, anxiety for a long time also possess a much higher risk of flat calendar than normal people. 

    • Some other factors:

  • Influenza vaccine
  • Painkillers, such as ibuprofen and Naproxen

    • Symptoms of Lichen nitidus's disease

    Skin lesions: Lichen Nitidus appears into a small cluster of papules, sparkling. The characteristics of these papers are:

  • Large size with needle head to nail, shape. Flat and round surface.
  • Color. The papules have the same skin color. They may be slightly pink on people with bright, or brighter skin on the skin of people with normal or dark skin.
  • Location. Lichen nitidus often occurs on the chest, abdomen, arms and genital area, including the penis. They rarely appear on the palms, soles of the feet or nails. Lichen Nitidus may disappear in one area of ​​the body, then appear in another area. Koebner phenomenon may be encountered: the patient scratches, along the scratching marks.
  • The rate can be linked into an array, when not leaving bruises.
  • Mucus lesions: 40-60% of patients with mucosal lesions. Maybe only in the mucosa without skin damage. The most common location is in the tongue and cheek mucosa, in addition to the larynx, tonsils, glans, vagina, stomach lining, around the anus. The characteristic lesions are white patches in the mouth or on the lips or tongue. The sores in the mouth or vagina
  • Damage in the scalp can cause permanent hair loss. Scalp discoloration

    • Nail lesions in 10% of patients with manifestations are vertical, thick nails, nails or nail atrophy. Mechanical: itching. In rare cases, Lichen Nitidus can cause itching, sometimes intense itching. The papules can appear in rows, along the scratches, folds or the area that is continuously crushed like a skin on the abdomen or elbow or wrist folds. When do you need to see a doctor? Clear as allergic reactions are known or exposed to toxins. There are many conditions that can cause skin reactions, it is best to have a quick and accurate diagnosis.

    Need to be taken care of immediately if the skin condition comes with other signs and symptoms such as:

  • Fever
  • itching
  • latex or fluid from the rash

    • People at risk for Lichen nitidus's disease

    Anyone can develop Lichen Planus. But the situation most often affects middle -aged people. Planen Lichen mouth often affects middle -aged women.

    Prevention of Lichen nitidus's disease

    There is no preventive measure.

    Diagnostic measures for Lichen nitidus's disease

    Definite diagnosis based on

    History of disease

    Mechanical symptoms

    Clinical examination

    Some subclinical tests include:

  • Biopsy . The doctor took a small piece of affected tissue to check under a microscope. The tissue is analyzed to determine that it has typical cell samples of Lichen Planus. Pictures of pathology: thick horn, thick seed layer, degeneration of the bottom layer. The mesoderms of infected cells cause papillary deformation to form the arch, clearly limited. Interfected cells are mainly CD4+, CD8+ and cells.
  • Immunity directly . Deposit immune complex, mainly IGM in the epidermis and dermis, a small part IgA and C3.

    • Hepatitis C test . You can take your blood to check hepatitis C, this is the cause of Lichen Nitidus

    Allergic test . The doctor may introduce you to an allergic expert (allergy doctor) or a dermatologist to find out if you are allergic to something that can activate the lichen.

    Other tests may be necessary if the doctor suspects that there is any variant of Lichen, such as the type that affects the esophagus, the genitals, ears or mouth.

    Lichen nitidus's disease treatments

    Lesions on the skin usually go away after a few months to several years. In some cases, it is easy to relapse, resist the treatments, so no matter which treatment is used, the doctor needs to be re -examined for about a year.

    How to treat flat lichen including drugs and other treatments that can help reduce itching, relieve pain and promote healing. Therapy can be a challenge. Talk to your doctor to consider the potential benefits against possible side effects of treatment.

    Principle of treatment

  • topical and mucous topical medication
  • Systemic treatment
  • Treatment of other diseases (if any)

    • Self -care measures can help reduce itching and discomfort due to lichen including:

  • Soak in a bath with oatmeal glue (Aveeno, another), then moisturizer
  • Use an uncontrolled hydrocortisone cream or ointment, containing at least 1 percent of hydrocortison
  • Avoid scratching or damaging the skin

    • For oral lichen, good oral hygiene and regular dentist examination are very important. You can help relieve pain from mouth ulcers by avoiding:

  • Smoking
  • Drinking alcohol
  • Consumption of spicy foods or acids

    • See also:

  • Skin cancer diagnosis measures
  • Dark skin cancer
  • Skin cancer: Causes, symptoms, diagnosis and treatment

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