Adrenal gland - In the adrenal gland, only a fraction of cortical cells, typically arranged in groups, fascicles or sheets, show weak to moderate pan Cytokeratin immunostaining.

Adrenal gland - In the adrenal gland, only a fraction of cortical cells, typically arranged in groups, fascicles or sheets, show weak to moderate pan Cytokeratin immunostaining.

Aorta, media

Appendix, mucosa

Appendix, muscular wall

Breast - In the breast, the intensity of pan Cytokeratin immunostaining is markedly weaker in basal cells than in luminal cells.

Bronchus, mucosa

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

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

Cerebrum, grey matter

Cerebrum, white matter

Colon descendens, mucosa

Colon descendens, muscular wall

Duodenum, Brunner gland

Duodenum, mucosa

Ectocervix

Endocervix

Endometrium, proliferation

Endometrium, secretion

Epididymis

Esophagus, squamous epithelium

Fat

Gallbladder, epithelium

Heart - pan Cytokeratin negative heart muscle containing lipofuscine pigment.

Ileum, mucosa

Kidney, cortex

Kidney, medulla

Liver - In the liver, a strong cytoplasmic staining of all bile ductal epithelial cells and an at least moderate, predominantly membranous immunostaining of hepatocytes is seen.

Liver - In the liver, a strong cytoplasmic staining of all bile ductal epithelial cells and an at least moderate, predominantly membranous immunostaining of hepatocytes is seen.

Liver - The pan Cytokeratin immunostaining pattern of hepatocytes can show a zonal variability.

Lung

Lymph node - A delicate fibrillar staining caused by fibroblastic reticulum cells is seen, mainly in the interfollicular area.

Ovary, stroma

Pancreas - In the pancreas, the intensity of pan Cytokeratin immunostaining decreases from intercalated and excretory ducts to acinar cells and is even lower in islet cells.

Parathyroid

Parotid gland - In the parotid gland, the intensity of pan Cytokeratin immunostaining is highest in excretory ducts.

Pituitary gland, anterior lobe

Pituitary gland, posterior lobe

Pregnant uterus (decidua)

Placenta, early

Placenta (amnion and chorion)

Placenta, mature

Prostate

Rectum, mucosa

Seminal vesicle

Sinus paranasales

Skin

Spleen - A delicate fibrillar staining is caused by fibroblastic reticulum cells.

Stomach, antrum

Stomach, corpus

Striated muscle

Testis

Thymus

Thyroid gland

Tonsil, surface epithelium - Squamous epithelial cells are strongly pan Cytokeratin positive while all lymphocytes are pan Cytokeratin negative.

Tonsil - pan Cytokeratin stains all epithelial cells in the tonsil crypts.

Urinary bladder, muscular wall

Urinary bladder, urothelium

Uterus, myometrium - In the uterus, bundles of smooth muscle cells show weak to moderate pan Cytokeratin immunostaining.

Uterus, myometrium - pan Cytokeratin staining is not always seen in myometrium samples.