Abstract
A patient with chronic lymphocytic leukemia and an undetectable plasma level of protein S (PS), associated with recurrent venous thrombosis, is described. The laboratory investigation revealed the concomitant presence of an inhibitor directed to PS and a monoclonal protein in the patient's plasma. After treatment with prednisone and cyclophosphamide both the inhibitor to PS and the monoclonal component disappeared.
MeSH terms
-
Antineoplastic Combined Chemotherapy Protocols / therapeutic use
-
Cyclophosphamide / administration & dosage
-
Humans
-
Leukemia, Lymphocytic, Chronic, B-Cell / blood
-
Leukemia, Lymphocytic, Chronic, B-Cell / complications*
-
Leukemia, Lymphocytic, Chronic, B-Cell / drug therapy
-
Male
-
Middle Aged
-
Prednisone / administration & dosage
-
Protein S Deficiency / blood
-
Protein S Deficiency / etiology*
-
Recurrence
-
Venous Thrombosis / etiology*
Substances
-
Cyclophosphamide
-
Prednisone