Pigmented Cells in the Pineal Gland of Female Viscacha (Lagostomus maximus maximus): A Histochemical and Ultrastructural Study

Figure 3

Image of female pineal gland in late pregnancy. (a) A positive DOPA histochemistry reaction is observed in the pigmented cells (arrowheads) in close relation to the pinealocytes (p). Nuclear counterstain: haematoxylin. (b) The photomicrograph shows a pigmented cell (arrowhead) near a blood vessel (v). Schmorl’s reaction, counterstain: Van Gieson. Scale bars: (a) and (b) 10 μm.

(a)

(b)