What Are the Signs of Hypersensitivity Vasculitis?

The Telltale Signs:
Recognizing hypersensitivity vasculitis can be challenging due to its varied presentation. The following are the hallmark symptoms that often point toward its diagnosis:

  1. Palpable Purpura: Palpable purpura is a classic feature of hypersensitivity vasculitis characterized by small, raised purple or red spots on the skin. These lesions typically occur on the lower extremities but can appear anywhere.

  2. Skin Rash: Alongside palpable purpura, individuals with hypersensitivity vasculitis may develop a more generalized rash, which can be itchy or painful.

  3. Joint Pain: Joint pain and swelling are common in hypersensitivity vasculitis, mimicking symptoms of other autoimmune diseases like rheumatoid arthritis.

  4. Gastrointestinal Symptoms: In severe cases, hypersensitivity vasculitis can affect the gastrointestinal tract, leading to abdominal pain, nausea, vomiting, and even gastrointestinal bleeding.