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Acquired factor V inhibitor in a patient with mantle cell lymphoma presenting with hematuria followed by thrombosis: a case report

Authors AlJohani N, Matthews J

Received 15 December 2013

Accepted for publication 15 January 2014

Published 24 February 2014 Volume 2014:7 Pages 27—30

DOI https://doi.org/10.2147/IMCRJ.S59236

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3


Naif I AlJohani,1,2 John H Matthews2

1King Faisal specialist hospital and research centre, Saudi Arabia; 2Division of Hematology, Department of Internal Medicine, Queen's University, Kingston, Ontario, Canada

Abstract: Acquired factor V inhibitor is a rare hemostatic disorder that presents with hemorrhagic manifestations in the vast majority of patients. Factor V inhibitor may develop through a variety of mechanisms involving development of alloantibodies or autoantibodies specific to Factor V. Autoantibodies, in particular, have been reported in a number of conditions. In this report, we describe a case of acquired factor V inhibitor in a patient with mantle cell lymphoma who presented with hematuria. Seven weeks after diagnosis and successful management, the patient developed deep vein thrombosis in the right lower extremity. The patient's factor V levels were normalized, and the inhibitor was successfully eradicated using corticosteroids. Here, we discuss this rare disorder, its unusual manifestation, and provide a mini-review of the current literature regarding factor V inhibitors.

Keywords: acquired factor V inhibitor, blood coagulation disorders, factor V deficiency, acquired bleeding disorders

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