Concurrent antiphospholipid syndrome and cutaneous [corrected] sarcoidosis due to interferon alfa and ribavirin treatment for hepatitis C.

Autoimmune phenomena are common in both hepatitis C infection and interferon alfa treatment; however, the development of antiphospholipid syndrome is rare. This article reports the case of a patient who developed antiphospholipid syndrome in addition to cutaneous sarcoidosis in the setting of pegylated interferon alfa and ribavirin treatment for hepatitis C.