Paroxysmal Nocturnal Hemoglobinuria Differential Diagnoses

  • Author: Emmanuel C Besa, MD; Chief Editor: Koyamangalath Krishnan   more...
 
Updated: Aug 16, 2011
 
 

Differential Diagnoses

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Contributor Information and Disclosures
Author

Emmanuel C Besa, MD  Professor, Department of Medicine, Division of Hematologic Malignancies, Kimmel Cancer Center, Jefferson Medical College of Thomas Jefferson University

Emmanuel C Besa, MD is a member of the following medical societies: American Association for Cancer Education, American College of Clinical Pharmacology, American Federation for Medical Research, American Society of Clinical Oncology, American Society of Hematology, and New York Academy of Sciences

Disclosure: Nothing to disclose.

Coauthor(s)

Ulrich Josef Woermann, MD  Consulting Staff, Division of Instructional Media, Institute for Medical Education, University of Bern, Switzerland

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD  Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Medscape Salary Employment

Marcel E Conrad, MD  Distinguished Professor of Medicine (Retired), University of South Alabama College of Medicine

Marcel E Conrad, MD is a member of the following medical societies: Alpha Omega Alpha, American Association for the Advancement of Science, American Association of Blood Banks, American Chemical Society, American College of Physicians, American Physiological Society, American Society for Clinical Investigation, American Society of Hematology, Association of American Physicians, Association of Military Surgeons of the US, International Society of Hematology, Society for Experimental Biology and Medicine, and Southwest Oncology Group

Disclosure: No financial interests None None

Rajalaxmi McKenna, MD, FACP  Southwest Medical Consultants, SC, Department of Medicine, Good Samaritan Hospital, Advocate Health Systems

Rajalaxmi McKenna, MD, FACP is a member of the following medical societies: American Society of Clinical Oncology, American Society of Hematology, and International Society on Thrombosis and Haemostasis

Disclosure: Nothing to disclose.

Chief Editor

Koyamangalath Krishnan  MD, FRCP, FACP, Paul Dishner Endowed Chair of Excellence in Medicine, Professor of Medicine and Chief of Hematology-Oncology, James H Quillen College of Medicine at East Tennessee State University

Koyamangalath Krishnan is a member of the following medical societies: Alpha Omega Alpha, American College of Physicians-American Society of Internal Medicine, American Society of Hematology, and Royal College of Physicians

Disclosure: Nothing to disclose.

References

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  3. Parker C, Omine M, Richards S, et al, for the International PNH Interest Group. Diagnosis and management of paroxysmal nocturnal hemoglobinuria. Blood. Dec 1 2005;106(12):3699-709. [Medline]. [Full Text].

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  9. Ruiz-Delgado GJ, Vazquez-Garza E, Mendez-Ramirez N, Gomez-Almaguer D. Abnormalities in the expression of CD55 and CD59 surface molecules on peripheral blood cells are not specific to paroxysmal nocturnal hemoglobinuria. Hematology. Feb 2009;14(1):33-7. [Medline].

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  12. Nishimura J, Kanakura Y, Ware RE, et al. Clinical course and flow cytometric analysis of paroxysmal nocturnal hemoglobinuria in the United States and Japan. Medicine (Baltimore). May 2004;83(3):193-207. [Medline].

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  15. Rosse WF, Dacie JV. The role of complement in the sensitivity of the paroxysmal nocturnal haemoglobinuria red cell to immune lysis. Bibl Haematol. 1965;23:11-8. [Medline].

  16. Rosse WF, Dacie JV. Immune lysis of normal human and paroxysmal nocturnal hemoglobinuria (PNH) red blood cells. I. The sensitivity of PNH red cells to lysis by complement and specific antibody. J Clin Invest. May 1966;45(5):736-48. [Medline]. [Full Text].

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This series of containers holds urine of a patient with paroxysmal nocturnal hemoglobinuria, showing the episodic nature of the dark urine (hemoglobinuria) during intravascular hemolysis, usually occurring at night. Early morning urine is cola-colored. This may occur at different times of the day and vary from patient to patient. Permission to use this image has been granted by the American Society of Hematology Slide Bank, 3rd edition.
The Ham test (acidified serum lysis) establishes the diagnosis of paroxysmal nocturnal hemoglobinuria (PNH), demonstrating a characteristic abnormality of PNH red blood cells by acidified fresh normal serum. Here is a PNH patient's (Pt) red blood cells lysed by normal serum at room temperature (RT) and at 37°C compared with normal red cells (no hemolysis) (control [C]). Heated serum at 56°C inactivates complement and prevents hemolysis in PNH cells. Permission to use this image has been granted by the American Society of Hematology Slide Bank, 3rd edition.
 
 
 
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