Figure 4. HSD3B and NGFI-B immunoreactivity in the developing human adrenal gland.
Brightfield IHC with antibodies to HSD3B (A–F) and NGFI-B (G–L) counterstained with toluidine blue. Dotted rings in A and G illustrate extent of the adrenal cortex. In other images, the definitive zone is oriented to the left and fetal zone to the right. Scale bar: 300 μm.