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Hemophagocytic lymphohistiocytosis associated with a parvovirus B19 infection during pregnancy
Michinori Mayama1, Masato Yoshihara, Tetsuya Kokabu
1Department of Obstetrics, Perinatal Medical Center, Toyota Memorial Hospital, Toyota, Aichi, Japan.
Background:
Hemophagocytic lymphohistiocytosis is potentially fatal. Prompt diagnosis and initiation of treatment are critical for ensuring the best possible prognosis.
Case:
We present a case of parvovirus B19 infection related to hemophagocytic lymphohistiocytosis during pregnancy. The patient experienced fever and pancytopenia. A bone marrow biopsy demonstrated hemophagocytosis and a giant proerythroblasts, which is characteristic of a parvovirus B19 infection. Viral serology for parvovirus B19 was positive. Prompt treatment was started because of the high level of certainty of viral-associated hemophagocytic lymphohistiocytosis, and the patient was successfully treated with prednisolone administration. She delivered a healthy newborn without any complications.
Conclusion:
Hemophagocytic lymphohistiocytosis should be considered when encountering unexplained cytopenia and fever. Prednisolone was an effective treatment.
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