Thromb Haemost 1992; 68(06): 648-651
DOI: 10.1055/s-0038-1646337
Original Article
Schattauer GmbH Stuttgart

Recurrent, Isolated Factor X Deficiency in Myeloma: Repeated Normalization of Factor X Levels after Cytostatic Chemotherapy Followed by Late Treatment Failure Associated with the Development of Systemic Amyloidosis

I Schwarzinger
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
,
M Stain-Kos
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
,
R Bettelheim
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
,
I Pabinger
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
,
P Kyrle
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
,
P Kalhs
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
,
S Kapiotis
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
,
U Jäger
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
,
K Lechner
The 1st Medical Department, Division of Hematology and Blood Coagulation, University of Vienna, Austria
› Author Affiliations
Further Information

Publication History

Received 28 April 1992

Accepted after revision 10 July 1992

Publication Date:
04 July 2018 (online)

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Summary

We describe the case of a 64-year-old woman with isolated severe factor X deficiency associated with kappa light chain myeloma. At the time of diagnosis there was no evidence for amyloidosis. Complete remission (CR) of myeloma as well as normalization of factor X levels were achieved after cytostatic chemotherapy. Subsequently, factor X deficiency recurred twice without any evidence for relapse of myeloma. The first time factor X normalized again following cytostatic treatment, the second time, however, factor X deficiency was refractory to chemotherapy. Finally, relapse of myeloma became evident associated with rapidly progressing, systemic amyloidosis, which was fatal within a few months. Initially, factor X infusion studies showed a normal recovery, but when amyloidosis became overt the recovery decreased to 0%. We assume that factor X deficiency was due to a binding of factor X to kappa light chains associated with the proliferation of the malignant myeloma cell clone.