Lichen Planus is a chronic inflammatory skin disease characterized by itchy, flat-topped, polygonal purple papules that can affect various parts of the body, including the skin, mouth, nails, and scalp. The exact cause of lichen planus is unknown, but it is believed to involve an abnormal immune response. The disease can be triggered by certain medications, infections, or other factors.
Lichen planus – causes, symptoms, diagnosis, treatment, pathology
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Lichen Planus Symptoms
- Itchy, flat-topped bumps
- Purple-colored lesions
- Raised, scaly patches
- Skin rashes on the wrists, ankles, torso, or genitals
- Mouth sores or ulcers
- Hair loss
- Nail abnormalities
- Burning or painful sensation on the affected areas
- Thin white lines on the inside of the cheeks
- Difficulty eating or drinking due to mouth discomfort
- Sensitivity to acidic or spicy foods
- Changes in skin color or texture
- Physical Examination: A dermatologist will visually inspect the affected areas to look for characteristic signs of Lichen Planus such as flat-topped papules, plaques, or white, lacy lesions on the skin or mucous membranes.
- Medical History: The patient's medical history will be reviewed to identify any previous episodes of Lichen Planus or factors that may have triggered the condition, such as medication usage, recent infections, or exposure to certain allergens.
- Skin Biopsy: A small sample of the affected skin may be taken for laboratory analysis. A skin biopsy helps confirm the diagnosis of Lichen Planus by examining the microscopic characteristics of the skin cells.
- Patch Testing: If contact dermatitis is suspected as a potential trigger for Lichen Planus, patch testing can be performed. This involves applying small amounts of common allergens to the skin under a patch and observing for any allergic reactions.
- Blood Tests: Although there are no specific blood tests for diagnosing Lichen Planus, occasionally blood tests may be done to rule out other conditions that may present with similar symptoms, such as autoimmune disorders or hepatitis C.