What type of vasculitis is characterized by immune complex-mediated leukocytoclastic vasculitis appearing 7-10 days after medication exposure?

The type of vasculitis characterized by immune complex-mediated leukocytoclastic vasculitis that appears 7-10 days after medication exposure is cutaneous small vessel vasculitis. This form of vasculitis primarily affects the smaller blood vessels, such as capillaries, venules, and arterioles in the skin.

In the context of medication exposure, the immune complex formation can lead to an inflammatory response, which manifests clinically as rash, purpura, and other skin changes. The timeline of 7-10 days aligns with the typical onset of drug reactions, as it suggests that the body has developed an immune response to the drug, which can result in the deposition of immune complexes in the vessel walls, leading to inflammation and damage.

This information highlights the distinctive nature of cutaneous small vessel vasculitis associated with medication exposure, setting it apart from other types of vasculitis, which may have different triggers, pathophysiological mechanisms, and clinical presentations.