title: Cryoglobulinemia-related vasculitis during effective anti-HCV treatment with PEG-interferon alfa-2b.
abstract: HCV infection may be related to many extrahepatic manifestations including mixed cryoglobulinemia (MC). Clinical manifestations commonly associated to MC include arthralgia, purpura, vasculitis, peripheral neuropathy and renal function abnormalities. Treatment with interferon often leads to remission, especially in virological responders, or to disappearance of MC-related clinical manifestations. We report on a patient with chronic hepatitis C, deficit of G6P-DH, type II MC, who developed a cryoglobulinemic vasculitis with purpura, renal impairment and arterial hypertension, during treatment with PEG-interferon a-2b plus amantadine. The occurrence of purpuric lesions and MC-related nephropathy with increased cryocrit despite negative viremia, in a patient previously asymptomatic, during interferon treatment, is unusual.
authors.affiliation: Dept. of Infectious Diseases, University of Turin, Amedeo di Savoia Hospital, Corso Svizzera 164, 10149 Turin, Italy.
authors.forename: T
authors.initials: T
authors.lastname: De Blasi
authors.forename: D
authors.initials: D
authors.lastname: Aguilar Marucco
authors.forename: G
authors.initials: G
authors.lastname: Cariti
authors.forename: A
authors.initials: A
authors.lastname: Maiello
authors.forename: F G
authors.initials: FG
authors.lastname: De Rosa
authors.forename: G
authors.initials: G
authors.lastname: Di Perri
mesh_terms: D000328:Adult; D000547:Amantadine / Q000627:therapeutic use; D000998:Antiviral Agents / Q000627:therapeutic use*; D003449:Cryoglobulinemia / Q000150:complications*; D004359:Drug Therapy, Combination; D016174:Hepacivirus / Q000187:drug effects; D019698:Hepatitis C, Chronic / Q000150:complications* / Q000188:drug therapy / Q000821:virology; D006801:Humans; D000077190:Interferon alpha-2; D016898:Interferon-alpha / Q000627:therapeutic use*; D008297:Male; D011092:Polyethylene Glycols; D011994:Recombinant Proteins; D016896:Treatment Outcome; D014657:Vasculitis / Q000209:etiology*
chemical_list: D000998:Antiviral Agents; D000077190:Interferon alpha-2; D016898:Interferon-alpha; D011994:Recombinant Proteins; D011092:Polyethylene Glycols; D000547:Amantadine; C417083:peginterferon alfa-2b