eMedicine Specialties > Pediatrics: General Medicine > Hematology
Transient Erythroblastopenia of Childhood: Differential Diagnoses & Workup
Updated: Sep 4, 2009
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
Differential Diagnoses
Acute Lymphoblastic Leukemia
Anemia of Prematurity
Anemia, Acute
Anemia, Chronic
Parvovirus B19 Infection
Other Problems to Be Considered
Diamond-Blackfan anemia6
Aplastic anemia
Drug-induced anemia
Leukemia
Hemolytic anemia: A person recovering from transient erythroblastopenia of childhood (TEC) may be confused with an individual with hemolytic anemia because, during the early recovery phase, the reticulocyte count may be elevated with a low hemoglobin level.
Workup
Laboratory Studies
The following studies are indicated in patients with suspected transient erythroblastopenia of childhood (TEC):
- CBC count
- CBC count results demonstrate a normochromic normocytic anemia, with a red cell morphology within the reference range on the peripheral smear.
- Mean corpuscular volume (MCV) is usually within the reference range; however, MCV may be elevated if the patient has begun to recover and has reticulocytosis.
- Hemoglobin studies
- The hemoglobin level is usually 5-7 g/dL but may be as low as 2 g/dL.
- Transient erythroblastopenia of childhood is frequently accompanied by clinically insignificant neutropenia that spontaneously resolves with the onset of reticulocytosis. Some series report the incidence of associated neutropenia to be as much as 64%.
- In contrast, Diamond-Blackfan anemia is characterized by fetal-like hematopoiesis with an increased fetal hemoglobin, I antigen, and MCV.
- Viral studies: A search for a viral etiology, such as cytomegalovirus, Epstein-Barr virus, and parvoviral immunoglobulin (Ig)G and immunoglobulin M, may be useful.
- Reticulocyte count: Initial reticulocyte count is less than 0.1%, and a spontaneous increase heralds the recovery phase.
- Iron studies: Iron studies are not indicated unless microcytosis is present. Serum iron levels may be elevated because of underuse.
Imaging Studies
- In individuals with suspected Diamond-Blackfan anemia, imaging studies may be helpful in revealing occult malformations; however, they are unnecessary for the diagnosis or treatment of transient erythroblastopenia of childhood.
Other Tests
- Bone marrow aspiration
- Consider bone marrow studies when clinical history, physical findings, or CBC count is inconsistent with classic transient erythroblastopenia of childhood.
- In patients with transient erythroblastopenia of childhood, findings include decreased or absent RBC precursors.
- Evidence of marrow recovery precedes a rapid rise in hemoglobin levels; thus, bone marrow studies may help determine if a patient with transient erythroblastopenia of childhood who is severely anemic is likely to recover before requiring a blood transfusion.
- In vitro studies have suggested that bone marrow cultures may have a future role in determining potential responsiveness of RBC aplasia to immunosuppressive therapy. In patients with classic presentations of transient erythroblastopenia of childhood, bone marrow cultures and immunosuppressive agents do not currently play a role.
- Enzyme levels: Red cell adenosine deaminase levels have been used to differentiate Diamond-Blackfan anemia from transient erythroblastopenia of childhood and other anemias. Enzyme levels are typically elevated in Diamond-Blackfan anemia, whereas levels found in persons with transient erythroblastopenia of childhood are normal or depressed.
More on Transient Erythroblastopenia of Childhood |
| Overview: Transient Erythroblastopenia of Childhood |
Differential Diagnoses & Workup: Transient Erythroblastopenia of Childhood |
| Treatment & Medication: Transient Erythroblastopenia of Childhood |
| Follow-up: Transient Erythroblastopenia of Childhood |
| References |
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References
Prassouli A, Papadakis V, Tsakris A, et al. Classic transient erythroblastopenia of childhood with human parvovirus B19 genome detection in the blood and bone marrow. J Pediatr Hematol Oncol. Jun 2005;27(6):333-6. [Medline].
Geetha D, Zachary JB, Baldado HM, et al. Pure red cell aplasia caused by Parvovirus B19 infection in solid organ transplant recipients: a case report and review of literature. Clin Transplant. Dec 2000;14(6):586-91. [Medline].
Skeppner G, Kreuger A, Elinder G. Transient erythroblastopenia of childhood: prospective study of 10patients with special reference to viral infections. J Pediatr Hematol Oncol. May 2002;24(4):294-8. [Medline].
Shaw J, Meeder R. Transient erythroblastopenia of childhood in siblings: case report and review of the literature. J Pediatr Hematol Oncol. Sep 2007;29(9):659-60. [Medline].
Chabali R. Transient erythroblastopenia of childhood presenting with shock and metabolic acidosis. Pediatr Emerg Care. Oct 1994;10(5):278-80. [Medline].
Martinez Barrio A, Eriksson O, Badhai J, et al. Targeted resequencing and analysis of the Diamond-Blackfan anemia disease locus RPS19. PLoS One. Jul 9 2009;4(7):e6172. [Medline].
Chan GC, Kanwar VS, Wilimas J. Transient erythroblastopenia of childhood associated with transient neurologic deficit: report of a case and review of the literature. J Paediatr Child Health. Jun 1998;34(3):299-301. [Medline].
Cherrick I, Karayalcin G, Lanzkowsky P. Transient erythroblastopenia of childhood. Prospective study of fifty patients. Am J Pediatr Hematol Oncol. Nov 1994;16(4):320-4. [Medline].
Freedman MH. 'Recurrent' erythroblastopenia of childhood. An IgM-mediated RBC aplasia. Am J Dis Child. May 1983;137(5):458-60. [Medline].
Gussetis ES, Peristeri J, Kitra V, et al. Clinical value of bone marrow cultures in childhood pure red cell aplasia. J Pediatr Hematol Oncol. Mar-Apr 1998;20(2):120-4. [Medline].
Gustavsson P, Klar J, Matsson H, et al. Familial transient erythroblastopenia of childhood is associated with thechromosome 19q13.2 region but not caused by mutations in coding sequencesof the ribosomal protein S19 (RPS19) gene. Br J Haematol. Oct 2002;119(1):261-4. [Medline].
Krijanovski OI, Sieff CA. Diamond-Blackfan anemia. Hematol Oncol Clin North Am. Dec 1997;11(6):1061-77. [Medline].
Miller R, Berman B. Transient erythroblastopenia of childhood in infants < 6 months of age. Am J Pediatr Hematol Oncol. Aug 1994;16(3):246-8. [Medline].
Mupanomunda OK, Alter BP. Transient erythroblastopenia of childhood (TEC) presenting as leukoerythroblastic anemia. J Pediatr Hematol Oncol. Mar-Apr 1997;19(2):165-7. [Medline].
Tam DA, Rash FC. Breath-holding spells in a patient with transient erythroblastopenia of childhood. J Pediatr. Apr 1997;130(4):651-3. [Medline].
Walters MC, Abelson HT. Interpretation of the complete blood count. Pediatr Clin North Am. Jun 1996;43(3):599-622. [Medline].
Further Reading
Keywords
transient erythroblastopenia of childhood, TEC, anemia, pallor, pure red cell aplasia, human parvovirus B19, Diamond-Blackfan anemia, aplastic crises, hyperhemolytic crises, hemoglobinopathy, sickle cell disease, hereditary spherocytosis, splenomegaly, icterus, hemolytic-associated anemia, sequestration-associated anemia, aplastic anemia
Differential Diagnoses & Workup: Transient Erythroblastopenia of Childhood