L95.9

Clinical Causes: Autoimmune reactions where the body's immune system attacks its blood vessels Infections, such as viral, bacterial, or fungal infections Use of certain medications that trigger allergic reactions Exposure to environmental factors or chemicals Underlying medical conditions like autoimmune diseases (e.g., lupus, Crohn's disease) Idiopathic cases where no specific cause can be identified

Key Symptoms: Skin rashes that may be purple, red, or brown in color Small, raised bumps on the skin Tenderness or pain in affected areas Sores or ulcers that do not heal easily Palpable purpura, which are raised purple spots due to bleeding under the skin Swelling or inflammation in localized areas Discoloration or darkening of the skin in affected regions Itching or a burning sensation in the skin

Diagnosis Path: Diagnosis of vasculitis limited to the skin involves a comprehensive approach including medical history review, physical examination, and laboratory tests. Skin biopsies are often performed to examine tissue samples for characteristic signs of blood vessel inflammation. Blood tests may be conducted to look for markers of inflammation or underlying autoimmune conditions. Additional tests might include urinalysis, imaging studies, or other specialized investigations to rule out systemic involvement or associated conditions.

Treatment Protocols: Topical corticosteroids to decrease local inflammation Systemic corticosteroids for more severe or widespread skin involvement Immunosuppressive medications, such as methotrexate or azathioprine, in persistent or recurrent cases Addressing and managing underlying triggers or associated conditions Supportive care, including wound care for sores and ulcers Lifestyle modifications to avoid known triggers and reduce inflammation