[Sarcoïdose in patient with chronic hepatitis C treated with pegylated interferon].

Induced sarcoïdosis during therapy with interferon for chronic viral hepatitis C involves mainly by isolated cutaneous lesions or with lung lesions. Systemic forms are very rare. We report an observation. A 50-year-old patient developed a systemic sarcoïdosis two months after the end of treatment for hepatitis C with pegylated interferon and ribavirin with lung, joint and hepatic manifestations. After starting corticosteroid therapy, the evolution was favourable. Induced sarcoïdosis by interferon therapy is rare, treatment necessitates stopping interferon, and sometimes corticosteroid therapy.