Allergic cutaneous vasculitis refers to a condition characterized by inflammation of blood vessels in the skin as a result of an allergic reaction. It is a form of vasculitis, which involves the inflammation of blood vessels, specifically affecting the cutaneous (skin) blood vessels.
The term "allergic" in "allergic cutaneous vasculitis" highlights that this condition is triggered by an allergic response. The immune system becomes hypersensitive to certain allergens, which can include medications, insect bites, foods, or environmental factors. When a person is exposed to these allergens, it can initiate an immune response, leading to the inflammation of blood vessels in the skin.
Symptoms of allergic cutaneous vasculitis may manifest as red or purple spots or patches on the skin, known as purpura. These may be accompanied by itching, burning, or pain in the affected areas. In severe cases, ulcers or blisters may develop on the skin. Other accompanying symptoms can include fatigue, fever, joint pain or swelling, and gastrointestinal issues.
Diagnosis of allergic cutaneous vasculitis involves a thorough evaluation of symptoms, medical history, and physical examination. In some cases, a skin biopsy may be performed to confirm the presence of blood vessel inflammation.
Treatment for allergic cutaneous vasculitis typically involves addressing the underlying allergic trigger, such as discontinuing the medication causing the reaction, if applicable. Antihistamines and corticosteroids may be prescribed to alleviate symptoms and reduce inflammation. In severe cases, immunosuppressive medications may be necessary to suppress the immune response causing the vasculitis. Close monitoring and regular follow-ups with a healthcare professional are recommended to manage the condition effectively.
