 |
Pituitary gland (posterior lobe) |
|
 |
Placenta (amnion and chorion) – Chorion cells show moderate to strong PAPP A immunostaining. Staining is also seen in the stroma, probably due to the „secreted“ nature of the protein. |
|
 |
Placenta (first trimester) – Trophoblast cells of a first trimester placenta exhibiting a moderate to strong PAPP A immunostaining. |
|
 |
Placenta (first trimester) – Strong PAPP A immunostaining of trophoblast cells of a first trimester placenta. |
|