“…In addition, cutaneous necrotizing vasculitis has been described in association with idiopathic inflammatory bowel disease. It has been reported in occasional patients with ulcerative colitis (Callen 1979) and to date in a total of 8 patients with Crohn's disease (Dyer et al 1970), Verbov & Stansfield 1972, Burgdorf& Orkin 1981, Chalvardjian & Nethercott 1982. In a series including 6 of these patients, the vascular changes were interpreted as representing coexistent cutaneous polyarteritis nodosa (Dyer et al 1970, Verbov & Stansfield 1972.…”