Lymph node - Extramedullary hematopoiesis in a female B6C3F1/N mouse from a chronic study. Increased numbers of hematopoietic cells are present within the lymph node medullary cords (arrows).
Lymph node - Extramedullary hematopoiesis in a female B6C3F1/N mouse from a chronic study (higher magnification of Figure 1). Hematopoietic cells include erythroblasts (arrow), immature granulocytes (arrowhead), and megakaryocytes (asterisk).