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Revista chilena de infectología

versión impresa ISSN 0716-1018

Resumen

GOMEZ, Natalia; HAYES, Strella de la  y  ROZAS, Gabriela. Erythroblastic hyperplasia secondary to acute parvovirus B19 infection: A case report. Rev. chil. infectol. [online]. 2020, vol.37, n.6, pp.775-779. ISSN 0716-1018.  http://dx.doi.org/10.4067/S0716-10182020000600775.

Acute parvovirus B19 infection is a self-limiting disease in patients with normal immune response. However, in patients with blood dyscrasias, it is possible to present with an aplastic crisis. We present the case of a 48-year-old man who had developed an aplastic crisis as a result of an acute parvovirus B19 infection with an undiagnosed hereditary spherocytosis. Suspicions of the parvovirus infection began to arise after a routine bone marrow histopathological analysis which showed erythroblastic hyperplasia with giant erythroid precursor and viral inclusions. A subsequent immunohistochemical analysis tested positive for VP1 and VP2 capsid proteins of parvovirus B19 in infected cells. The diagnostic suspicion was later confirmed with the presence of anti-parvovirus B19 IgM. According to our review, this is the first published case in Latin America that documents an adult patient with normal immune response whose first symptom of hereditary spherocytosis was an aplastic crisis induced by an acute parvovirus B19 infection.

Palabras clave : hereditary spherocytosis; human parvovirus B19; aplastic crisis.

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