Asian Journal of Transfusion Science
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Year : 2020  |  Volume : 14  |  Issue : 1  |  Page : 57-59

Applying Donath–Landsteiner test for the diagnosis of paroxysmal cold hemoglobinuria

Department of Transfusion Medicine, Medanta-The Medicity, Gurgaon, Haryana, India

Correspondence Address:
Dr. Aseem Kumar Tiwari
Department of Transfusion Medicine, Medanta-The Medicity, Sector-38, Gurgaon - 122 001, Haryana
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajts.AJTS_132_17

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61-year old male patient was admitted to the hospital with clinical picture of hemolytic anemia with hemoglobinuria. Patient was suspected to have Infectious Mononucleosis (IM) with Auto Immune Hemolytic Anemia (AIHA). DAT was positive with anti-C3d specificity. Donath Landsteiner (DL) test was positive; confirming Paroxysmal Cold Hemoglobinuria (PCH). The final diagnosis was IM with PCH. Patient was managed conservatively and discharged after seven days. DL test specifically detects a biphasic autoantibody (IgG type) that binds to RBCs at cold temperatures, and fixes complement on the RBC membrane. However RBCs are only lysed upon warming to 37C when complement cascade proceeds to completion.

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2006 - Asian Journal of Transfusion Science | Published by Wolters Kluwer - Medknow
Online since 10th November, 2006