Acute promyelocytic leukemia evolving from paroxysmal nocturnal hemoglobinuria: A rare occurrence


Eren R., TOPTAŞ T. , ATAGÜNDÜZ I. , Firatli Tuglular T.

MARMARA MEDICAL JOURNAL, cilt.29, sa.2, ss.114-116, 2016 (ESCI İndekslerine Giren Dergi) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 29 Konu: 2
  • Basım Tarihi: 2016
  • Doi Numarası: 10.5472/mmjcr.2902.02
  • Dergi Adı: MARMARA MEDICAL JOURNAL
  • Sayfa Sayıları: ss.114-116

Özet

A previously healthy 31-year-old female presenting with dyspnea, iron deficiency anemia, pancytopenia, splenomegaly, and abnormal coagulation tests was admitted to the hospital. Hematology consultation additionally revealed that 71% of cells were indicative of acute promyelocytic leukemia (APL) and the patient tested positive for a t(15; 17) translocation, confirming APL. All-trans retinoic acid (ATRA) therapy was initiated immediately, but the patient exhibited severe dyspnea. This subsequently resulted in circulatory and respiratory arrest, followed by death. Just after death, fluorescein-labelled proaerolysin (FLAER) revealed a paroxysmal nocturnal hemoglobinuria (PNH) monocyte clone of 82%, confirming the diagnosis of PNH. Leukemia can be derived from non-PNH clones in PNH patients. Catastrophic thromboembolic events that could not be controlled with aggressive anticoagulation in a profoundly thrombocytopenic patient without overt disseminated intravascular coagulation (DIC) may suggest co-existent PNH.