All nine patients were subjected to complementary laboratory tests (haemogram, AST/ALT, bilirrubin, gamma-glutamyltransferase, platelets count, B and C hepatitis serology, cytomegalovirus serology, and feces parasitological exams) and ultrasonographic examination of the liver aiming to find alterations that could characterize hepatic capillariasis. The gene discussed is GPT; the disease is hepatitis C virus infection.