Figure 5

Sinus histiocytosis. A. Histiocytes in the central sinuses of the lymph node after three months exposure to MgCa0.8 and B. after three months exposure to TiAl6V4 (CD68-immunostaining of histiocytes, × 400). Sinus histiocytosis was increased in lymph nodes of the TiAl6V4-group in comparison to the MgCa0.8-group. Black bar = 50 μm.