Adrenal gland – A variable, weak to moderate nuclear PR immunostaining can be found in subsets of adrenocortical cells (not in all samples).

Anal canal, skin

Aorta, media – A moderate to strong nuclear PR immunostaining can be found in a fraction of the smooth muscle cells of the aortic wall.

Appendix, mucosa

Appendix, muscular wall

Breast – A moderate to strong PR positivity is seen in a fraction of the epithelial cells of the breast gland.

Bronchus, mucosa

Cerebellum (molecular layer, Purkinje cell layer, granule cell layer, white matter)

Cerebellum (molecular, Purkinje cell, granule cell layers; white matter)

Cerebrum, grey matter

Cerebrum, white matter

Colon descendens, mucosa

Colon descendens, muscular wall

Duodenum, Brunner gland

Duodenum, mucosa

Epididymis – A moderate to strong PR immunostaining can be seen in epithelial cells of the cauda epididymis.

Epididymis – PR immunostaining is absent in the corpus epididymis.

Esophagus, squamous epithelium

Fallopian tube, mucosa – A strong PR immunostaining is found in epithelial and stromal cells of the fallopian tube.

Fat

Gallbladder, epithelium

Heart muscle

Ileum, mucosa

Kidney, cortex – A weak to moderate PR immunostaining is seen in subsets of glomerular, tubular and stromal cells of the kidney.

Kidney, medulla

Liver

Lung

Lymph node

Ovary, corpus luteum – A weak to moderate PR immunostaining occurs in corpus luteum cells of the ovary.

Ovary, stroma – A moderate nuclear PR immunostaining occurs in ovarian stroma cells.

Pancreas – A moderate to strong PR immunostaining is seen in islet cells and few other cells in the pancreas.

Pancreas – A moderate to strong PR immunostaining is seen in islet cells of the pancreas.

Parathyroid gland

Parotid gland – A weak PR staining can sometimes be seen in a limited number of cells in salivary glands.

Pituitary gland, anterior lobe – A weak to moderate nuclear PR immunostaining can be found in a small subset of epithelial cells of the adenohypophysis.

Pituitary gland, posterior lobe

Placenta (amnion)

Placenta (chorion) – PR immunostaining of decidua cells adjacent to the placenta.

Placenta, early – PR immunostaining is absent in the placenta.

Placenta, mature

Prostate – A moderate to strong PR immunostaining occurs in stromal cells of the prostate.

Rectum, mucosa

Seminal vesicle – A moderate to strong PR immunostaining occurs in stromal cells of the seminal vesicles.

Sinus paranasales

Skeletal muscle

Skin

Spleen

Stomach, antrum

Stomach, corpus

Testis

Thymus

Thyroid gland

Tonsil, surface epithelium

Tonsil

Urinary bladder, muscular wall

Urinary bladder, urothelium – A weak PR immunostaining is occasionally seen in stroma cells of the urinary bladder mucosa.

Uterus, ectocervix – A moderate PR immunostaining is seen in the basal cell layer of the squamous epithelium and stromal cells of the ectocervix.

Uterus, endocervix – A strong PR immunostaining is found in epithelial and stromal cells of the endocervix.

Uterus, endometrium (pregnancy) – A moderate to strong PR immunostaining is seen in decidua cells in an endometrium sample from a pregnant female.

Uterus, endometrium (proliferation) – A very strong, predominantly nuclear PR immunostaining is found in epithelial and stromal cells of the endometrium.

Uterus, endometrium (secretion) – Nuclear PR immunostaining is strong in stromal cells but only weak to moderate in epithelial cells in this sample from the endometrium.

Uterus, myometrium – A strong nuclear PR immunostaining occurs in smooth muscle cells of the myometrium.