Parvovirus B19 (erythrovirus)

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Images of peripheral blood and/or bone marrow of blood disorders and normal hematopoiesis.
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Parvovirus B19 (erythrovirus)

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Author: NITYA BHOYAR; ARNAV WAGH; KOMAL GALANI
Category: Laboratory Hematology > Basic cell morphology > Red cell inclusions and abnormalities
Published Date: 05/01/2026

Parvovirus B19 (erythrovirus) infection in the bone marrow is characterized by marked erythroid hypoplasia and presence of Giant Pronormoblasts (Lantern Cells).

These cells are markedly enlarged erythroid precursors (25–32 µm) with large, eosinophilic intranuclear inclusions and cytoplasmic blebs or pseudopods, sometimes referred to as "dog ear" projections.

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