melphalan and Calcinosis

We report a 50-year-old female patient with diffuse and rapidly progressing splenic calcification. She had developed nephrotic syndrome and been diagnosed with renal amyloid light-chain amyloidosis in 2010. Although she had been given melphalan and dexamethasone therapy and high-dose melphalan followed by autologous blood stem-cell transplantation, her renal function worsened and hemodialysis was started in May 2011. Since November 2011, splenic calcification, probably associated with amyloidosis, had progressed, and diffuse calcification was observed throughout the splenic area in September 2012. During the same period, the patient was hospitalized for thrombocytopenia. Although splenic dysfunction due to calcification was suspected to be the cause of thrombocytopenia, the association between the two could not be established. The platelet count rose with an improvement in hepatic congestion due to reinforced fluid removal during dialysis.

Topics: Amyloidosis; Calcinosis; Dexamethasone; Disease Progression; Female; Humans; Melphalan; Middle Aged; Nephrotic Syndrome; Peripheral Blood Stem Cell Transplantation; Renal Insufficiency; Splenic Diseases; Thrombocytopenia; Transplantation, Autologous

Topics: Amyloid; Amyloidosis; Calcinosis; Female; Humans; Intestinal Diseases; Intestinal Mucosa; Intestine, Large; Melphalan; Middle Aged; Prednisolone; Protein Denaturation; Treatment Outcome

A-52-year-old patient presented with a 2-year history of multiple myeloma, recurrent episodes of hypercalcemia, and extensive bone involvement. She developed pulmonary infiltrates, initially misdiagnosed as interstitial pneumonia. High-resolution computed tomography and bone scintiscanning indicated pulmonary calcification, which was confirmed by a transbronchial biopsy. Cytostatic treatment of multiple myeloma in combination with repetitive i.v. administration of bisphosphonates over a period of 6 months led to a significant improvement of clinical symptoms. Regression of pulmonary infiltrates was demonstrated by chest radiograph and computed tomography. There are only a few reports on pulmonary calcification in patients with multiple myeloma; the condition was associated mostly with progressive disease, kidney failure, adult respiratory distress syndrome and bad prognosis. In our patient isolated calcification of the lungs without involvement of other organ systems was successfully treated. These findings suggest that interstitial pulmonary calcinosis in multiple myeloma can be reversed by normalization of serum calcium levels using bisphosphonates combined with cytostatic treatment.

Topics: Antineoplastic Agents, Alkylating; Antineoplastic Agents, Hormonal; Calcinosis; Diphosphonates; Female; Humans; Lung Diseases; Melphalan; Middle Aged; Multiple Myeloma; Pamidronate; Prednisone; Tomography, X-Ray Computed

Topics: Bence Jones Protein; Calcinosis; Calcium; Cyclophosphamide; Humans; Hypercalcemia; Kidney Tubules; Male; Melphalan; Multiple Myeloma; Perfusion; Phosphates; Pulmonary Alveoli