Valproate-induced leucocytoclastic vasculitis: A rare case report

Abstract

ABSTRACT Drug-induced vasculitis is essentially a small-vessel vasculitis. Histopathological changes in this condition are characterised by neutrophilic leucocytoclasia of the small vessels. To label it leucocytoclastic vasculitis, one must exclude other types of vasculitis where autoimmune workup comes into play. Antiepileptics, although rare, are also known to have such a presentation. We present a case of a 35-year-old male, a known case of hypertension and seizure disorder (on regular treatment), with a recent history of generalised tonic–clonic seizures, leading to a change in his antiepileptics. This was followed by extensive rash development, predominantly on his lower limbs, which was diagnosed as leucocytoclastic vasculitis, with sodium valproate (VPA) being the aetiology for the same. The offending drug was removed, and after treatment with steroids, the patient’s condition significantly improved.