P029 Infliximab-induced lupus panniculitis in hidradenitis suppurativa: a case report

Abstract Lupus panniculitis is a rare form of cutaneous lupus. It is characterized by tender subcutaneous nodules with a histological lobular panniculitis. Tumour necrosis factor (TNF)-α inhibitors have been reported to induce lupus panniculitis in only four cases worldwide. All cases had coexisting rheumatological conditions and presented within 24 months of TNF-α inhibitor initiation. We present the case of a 49-year-old woman with hidradenitis suppurativa developing infliximab-induced lupus panniculitis 8 years into her treatment. This is longest length of time between TNF-α inhibitor initiation and lupus panniculitis recorded and is the only case developing in a nonrheumatological patient.