| 1029 | Introduction AL (immunoglobulin light chain) amyloidosis is a plasma cell dyscrasia in which clonal immunoglobulin light chains misfold, forming amyloid fibrils that are deposited in tissues and vital organs, leading to organ dysfunction and death.1 The kidneys, heart, and the nervous system are most commonly affected. About 30% of patients with AL amyloidosis have clinical evidence of hepatic involvement, although one autopsy series found histological evidence of liver involvement with amyloid in 70% of patients.2-4 Amyloid deposition commonly involves the central vein, portal vessels, portal stroma, and sinusoidal areas.2 Liver involvement with AL amyloidosis can manifest with abdominal pain, decreased appetite, hepatomegaly and elevated alkaline phosphatase and transaminases.5 Hyperbilirubinemia occurs as a late manifestation in the course of liver disease associated with AL amyloidosis.Untreated AL amyloidosis has an overall poor prognosis, with a median survival of 10-14 months from diagnosis. 6 In patients treated with oral melphalan and prednisone, the median survival is marginally increased to 17 months 6,7 with a 5-year and 10-year survival rate of 16% and 5%, respectively. 8 In patients with hepatic involvement, the median survival seems to be even less, reported as nine months, with 5-year and 10-year survival rates of 13-17% and 1-7%, respectively. High-dose intravenous melphalan and autologous stem cell transplantation (HDM/SCT) has become a first-line treatment for selected patients with AL amyloidosis. HDM/SCT has been shown to induce both hematologic and clinical remissions in AL amyloidosis, and it appears to prolong survival substantially when hematologic remissions are achieved.
9-11Recently, we reported the long-term follow-up of 80 patients treated with HDM/SCT with a median survival of 57 months. 12 In the present study, we have carried out a retrospective analysis of hepatic response after HDM/SCT treatment for patients with AL amyloidosis related liver disease.