Anti-TNF-induced lupus in patients with inflammatory bowel disease.

ATIL is a significant complication of anti-TNF therapy, affecting 1 in every 20 patients who commence infliximab. A panel of serological markers is useful to confirm the diagnosis and exclude other conditions that may mimic ATIL. Clinicians using anti-TNF medications should counsel patients about this potential risk and monitor for clinical manifestations of lupus during routine follow up.