Fig. 2From: Extramedullary hematopoiesis presented as cytopenia and massive paraspinal masses leading to cord compression in a patient with hereditary persistence of fetal hemoglobinPathology of the thoracic paraspinal mass. The thoracic paraspinal mass was resected. H & E stain reviewed dense hematopoietic tissues. Immunostaining was positive for hemoglobin A (red cell) and CD61 (megakaryocytes)Back to article page