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Acquired factor VIII inhibitor preceding chronic lymphocytic leukemia
J Mateo1, R Martino, M Borrell
1Department d'Hematologia, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
Annals of Hematology
|December 1, 1993
Summary
An acquired factor VIII inhibitor, a rare autoimmune condition, was identified in an elderly woman. This case is the first documented association between factor VIII inhibitors and chronic lymphocytic leukemia.
Area of Science:
- Hematology
- Immunology
- Oncology
Background:
- Acquired factor VIII inhibitors are rare autoimmune disorders.
- They can lead to severe bleeding complications.
Observation:
- An 82-year-old woman presented with spontaneous ecchymoses.
- Coagulation tests showed a prolonged activated partial thromboplastin time unresponsive to plasma mixing.
- Factor VIII:C was significantly reduced, and a factor VIII inhibitor titer was detected.
Findings:
- The patient later developed B-cell chronic lymphocytic leukemia (CLL).
- This represents the first reported case of an acquired factor VIII inhibitor associated with CLL.
Implications:
- This finding suggests a potential link between CLL and the development of autoimmune factor VIII inhibitors.
- Further research is warranted to explore the underlying mechanisms and clinical significance of this association.