Автор работы: Пользователь скрыл имя, 20 Декабря 2011 в 21:12, доклад
Hepatomegaly may persist afteran attack of hepatitis. In chronic persistent hepatitis, liver biopsy shows continuing periportal inflammation, but there is normal liver architecture.
Chronic liver disease
Hepatomegaly may persist afteran attack of hepatitis. In chronic persistent hepatitis, liver biopsy shows continuing periportal inflammation, but there is normal liver architecture. Enzymes may remain persistently high but other biochemistry is normal. Although there are often no long-term sequelae, a proportion of patients with this histological diagnosis progress to chronic active hepatitis and cirrhosis.
Chronic active hepatitis is also known as chronic hepatic inflammation continuing progressively for up to 6 months without any evidence of improvement, confirmed by characteristic features on liver biopsy. It may occur as a sequel to hepatitis B, C, D, autoimmune disease, drug- induced hepatitis and Wilson’s disease. Many patients present with evidence of advanced liver damage. Biochemistry shows raised bilirubin, AST, ALT and alkaine phosphatase. Markers for hepatitis B,C and D may be present. Liver biopsy shows a plasma cell infiltrate with extensive parenchymal necrosis. Progression to cirrhosis is common, and this is associated with a high incidence of primary liver cell cancer. Treatment is unsatisfactory, but some patients respond to interferon.