Dermatologic Extrahepatic Manifestations of Hepatitis C

Abstract

Hepatitis C virus (HCV) affects millions of people worldwide, and an estimated 3.2 million people in the United States. HCV is a hepatotropic and lymphotropic virus that causes not only liver disease, but also a significant number of extrahepatic manifestations (EHMs). Up to 74% of patients affected by HCV will have HCV-related EHMs of some severity in their lifetime. The EHMs vary from simple cutaneous palpable purpura to complex lymphoproliferative disorders, including lymphomas and immune-complex deposit diseases causing local and/or systemic complications. Mixed cryoglobulinemia (MC) is manifested by multiple systemic organ involvement, mainly skin, kidney, peripheral nerves, and salivary glands, and less frequently causes widespread vasculitis and malignant lymphoma. MC affects up to 3% of HCV-infected patients with cryoglobulinemia of clinical significance, i.e. >6%. Severe disease requires immunosuppressive or plasma exchange therapy. HCV prevalence in the United States in patients with porphyria cutanea tarda (PCT) was reported to be 66%, much higher than that in general population. Therefore, all patients with PCT should be screened for HCV. The skin rash of PCT varies from large blisters to small vesicles and/or milia on the hands. Skin manifestations due to PCT usually respond to anti‐HCV treatment together with reducing skin sun exposure, avoiding triggers, having routine phlebotomy (especially for people with chronic iron overload states), and using chloroquine. Lichen planus (LP), which typically affects both the skin and oral mucosa is a chronic inflammatory disease of squamous cell origin affecting about 1% of the worldwide population. The prevalence of HCV in patients with LP varies based on geographic location. We review here the basic pathophysiology, clinical features, and management of dermatologic manifestations of HCV.

Cryoglobulinaemia in Egyptian Patients with Extrahepatic Cutaneous Manifestations of Chronic Hepatitis C Virus Infection

“…It has been reported that 20% of the patients with HCV have MC, but most have cryoglobulins levels of less than 6%, which is not clinically significant and that only 3% of HCV patients have clinically significant MC with cryoglobulins levels of more than 6% [ 23 , 24 ]. The mean cryocrit levels in HCV patients were determined to be about 2% [ 25 ].…”

Hepatitis C virus as a systemic disease: reaching beyond the liver

“…Chronic lichen planus is considered a premalignant condition, especially when involving the oral cavity, and has the propensity to progress to squamous cell carcinoma. Although data are limited on the effect of the new direct acting antivirals on the cutaneous manifestations of CHC, there is evidence from earlier studies that dermatological EMs including porphyria cutanea tarda often resolve with treatment with pegylated interferon (peg-IFN) and ribavirin [ 18 – 20 ]. Data on the treatment effect on lichen planus, however, are conflicting, with both worsening of manifestations and regression having been reported [ 20 ].…”

“… Reduced depression [ 51 ]. Resolution of dermatological EMs including porphyria cutanea tarda [ 18 – 20 ] and lichen planus, although data on the latter are conflicting with both worsening and regression having been reported [ 20 ]. Reduced stroke risk [ 62 ].…”

Liver Illness and Psoriatic Patients

“…Hepatitis C virus (HCV) infection affects about 200 million people worldwide, being a major health problem [ 65 ]. HCV infection is associated with a high spectrum of extrahepatic disorders, including dermatological manifestations such as Sicca syndrome and lichen planus [ 66 ]. Some reports suggest a link between HCV and psoriasis as well [ 67 ].…”