Leukophagocytosis in human parvovirus B19-induced transient bicytopenia in a healthy child

A previously healthy 11 year old boy had transient leukopenia and thrombocytopenia associated with human parvovirus B19 (B19) infection. This case suggested that low-grade hemophagocytosis can be involved in developing B19-related cytopenia even in an otherwise healthy child. Bone marrow aspiration at an early stage could reveal the underlying mechanism of B19-related cytopenia.