Leukocytoclastic vasculitis of the extremities secondary to pancreatic cancer and <i>Escherichia coli</i> abscess; An unusual case of distinct etiologies in the same patient

Leukocytoclastic vasculitis (LCV) is a disease secondary to infections, malignancies, or drug exposure, although its pathogenesis remains unclear. Secondary LCV from different causes in the same patient has been rarely reported. We present a case of LCV secondary to pancreatic cancer that remained in remission for one year post-surgery, after which the patient suffered from a subdiaphragmatic abscess caused by Escherichia coli, followed by recurrence of LCV. This case suggests that patients with acquired hyposplenism may be susceptible to developing LCV as a manifestation of underlying disease. Careful evaluation of the underlying disease is important to avoid inappropriate immunosuppressive treatment.