B19 parvovirus infection and transient aplastic crisis in a child with sickle cell anemia

Area of Science:

• Pediatrics
• Hematology
• Infectious Diseases

Background:

• Sickle cell anemia (SCA) patients are susceptible to infections.
• Parvovirus B19 is a known cause of aplastic crisis in SCA.
• Acute chest syndrome (ACS) is a common SCA complication.

Observation:

• A child with SCA presented with parvovirus B19 infection.
• The patient developed acute chest syndrome and bone marrow infarction.
• Bone marrow infarction was suspected to cause pulmonary fat embolism leading to ACS.

Findings:

• Parvovirus B19 infection caused transient aplastic crisis.
• Erythropoiesis cessation, not bone marrow infarction, led to reticulocytopenia and worsening anemia.
• The bone marrow infarction was clinically unsuspected.

Implications:

• Parvovirus B19 infection is a critical cause of aplastic crisis in SCA.
• Understanding the cause of reticulocytopenia is crucial for managing SCA patients.
• This case highlights the complex interplay between infection, bone marrow infarction, and ACS in SCA.