Improvement of amyloid-related symptoms after autologous stem cell transplantation in a patient with hepatomegaly, macroglossia and purpura.

AL amyloidosis was diagnosed in a 56-year-old woman with spontaneous purpura, macroglossia and hepatomegaly, a serum IgGk monoclonal gammopathy and a 25% plasma cell bone marrow infiltration. She was started on high-dose treatment consisting of four monthly cycles of VID chemotherapy, then underwent a stem cell collection after priming with cyclophosphamide + G-CSF. Myeloablative therapy was with melphalan and busulfan. Hematologic recovery was fast and uncomplicated. At follow-up 22 months from ASCT, the patient shows a complete remission of the clonal plasma cell disorder, normalization of liver size and alkaline phosphatase level and a significant improvement in the signs of vascular and soft tissue amyloid infiltration.