Severe Raynaud's phenomenon with chronic hepatis C disease treated with interferon.

Severe Raynaud's phenomenon developed in a 5-year-old girl with chronic hepatitis C infection at the fifth month of interferon therapy in the absence of cryoglobulinemia and other conditions commonly associated with secondary Raynaud's phenomenon. Although interferon therapy was promptly discontinued, Raynaud's phenomenon persisted for 4 months with appearance of necrotic-ulcerous lesions at the tips of fingers.