 
								
										Adrenal gland
									
									
								 
								
										Anal canal, skin - A weak to moderate, mostly membranous MUC1 immunostaining is seen in this keratinizing squamous epithelium from the anal skin. 
									
									
								 
								
										Aorta, media
									
									
								 
								
										Appendix, mucosa
									
									
								 
								
										Appendix, muscular wall
									
									
								 
								
										Bone marrow
									
									
								 
								
										Breast - A moderate to strong cytoplasmic MUC1 immunostaining with apical predominance is seen in breast glands. MUC1 staining may be weaker in basal cells.  
									
									
								 
								
										Bronchus, mucosa  - A variable, moderate to strong MUC1 staining occurs in respiratory epithelium. 
									
									
								 
								
										Bronchus, mucosa - A variable, moderate to strong MUC1 staining occurs in respiratory epithelium. 
									
									
								 
								
										Cerebellum (molecular layer, Purkinje cell layer, granule cell layer, white matter)
									
									
								 
								
										Cerebellum (white matter)
									
									
								 
								
										Cerebrum, grey matter - A weak fibrillar MUC1 staining can be seen in samples from the cerebrum.
									
									
								 
								
										Cerebrum, grey matter
									
									
								 
								
										Cerebrum, white matter - A weak fibrillar MUC1 staining can be seen in samples from the cerebrum.
									
									
								 
								
										Cerebrum, white matter
									
									
								 
								
										Colon descendens, mucosa
									
									
								 
								
										Colon descendens, muscular wall
									
									
								 
								
										Duodenum, Brunner gland - A weak apical membranous staining is occasionally seen in Brunner glands.  
									
									
								 
								
										Duodenum, mucosa
									
									
								 
								
										Epididymis - In the epididymis the staining varies from strong diffuse cytoplasmic with apical predominance to only apical membranous staining. This sample shows a particularly strong staining. 
									
									
								 
								
										Esophagus, squamous epithelium - A strong MUC1 immunostaining is seen in this non-keratinizing squamous epithelium of the esophagus.  
									
									
								 
								
										Fallopian tube, mucosa - A strong cytoplasmic MUC1 immunostaining with apical predominance is seen in the epithelium of the fallopian tube.  
									
									
								 
								
										Fat
									
									
								 
								
										Gallbladder, epithelium - A weak to moderate membranous MUC1 staining is seen in gallbladder epithelium.
									
									
								 
								
										Heart muscle
									
									
								 
								
										Ileum, mucosa
									
									
								 
								
										Kidney, cortex  - Distal tubuli and collecting ducts show a strong cytoplasmic MUC1 staining while proximal tumuli are completely negative and cells of the Bowman’s capsule show weak to moderate positivity.  
									
									
								 
								
										Kidney, medulla - A strong cytoplasmic MUC1 staining is seen in collecting ducts.  
									
									
								 
								
										Liver - A weak to moderate, predominantly apical MUC1 staining is seen in intrahepatic bile ducts, while hepatocytes are negative.  
									
									
								 
								
										Lung - In the lung, a strong MUC1 staining is seen in all pneumocytes.  
									
									
								 
								
										Lymph node - Faint MUC1 staining of few cells in the germinal centre. 
									
									
								 
								
										Ovary, stroma
									
									
								 
								
										Pancreas - Pancreatic acinar cells show a strong MUC1 immunostaining of the apical membranes and of granular (Golgi like) structures below the apical surface.  
									
									
								 
								
										Parathyroid
									
									
								 
								
										Parotid gland - In salivary glands, a moderate MUC1 immunostaining of apical membranes of serous glandular cells and of excretory ducts is seen.  
									
									
								 
								
										Peripheral nerves - Sheaths of peripheral nerves show moderate MUC1 staining.  
									
									
								 
								
										Pituitary gland, anterior lobe - In the adenohypophysis a moderate staining with apical predominance is seen in a fraction of cells/acini.
									
									
								 
								
										Pituitary gland, posterior lobe - A strong fibrillar MUC1 staining occurs in the neurohypophsis.
									
									
								 
								
										Placenta (amnion and chorion) - A strong cytoplasmic staining is seen in amnion and chorion cells of the placenta.
									
									
								 
								
										Placenta, early  - In the first trimenon, a predominantly membranous MUC1 staining can occur in a fraction of trophoblastic cells.
									
									
								 
								
										Placenta, early - In the first trimenon, a predominantly membranous MUC1 staining can occur in a fraction of trophoblast cells.  
									
									
								 
								
										Placenta, early - A predominantly membranous MUC1 staining can occur in a fraction of trophoblast cells, especially in the first trimenon.
									
									
								 
								
										Placenta, mature  - In the mature placenta, a predominantly membranous MUC1 staining can occur in a fraction of trophoblastic cells.  
									
									
								 
								
										Placenta, mature  - A predominantly membranous MUC1 staining can occur in a fraction of trophoblast cells. In this sample, the staining is strong. 
									
									
								 
								
										Prostate - MUC1 immunostaining is variable in the prostate. In this sample, a weak MUC1 staining of luminal cells is seen in few glands while others are completely negative. 
									
									
								 
								
										Prostate - MUC1 immunostaining is variable in the prostate. In this sample, a moderate to strong  MUC1 staining of luminal and basal cells is seen in a fraction of cells of some glands.   
									
									
								 
								
										Rectum, mucosa
									
									
								 
								
										Seminal vesicle  - A strong apical MUC1 staining focally occurs in seminal vesicle epithelium. 
									
									
								 
								
										Sinus paranasales - A variable, moderate to strong MUC1 staining occurs in respiratory epithelium. 
									
									
								 
								
										Skeletal muscle
									
									
								 
								
										Skin - MUC1 immunostaining is usually absent in the skin. 
									
									
								 
								
										Skin (sebaceous glands) - A strong MUC1 immunostaining is seen in sebaceous glands, while the skin is usually MUC1 negative. 
									
									
								 
								
										Spleen
									
									
								 
								
										Stomach, antrum - Mucous producing glands of the stomach show variable, sometimes also strong MUC1 positivity while the surface epithelial cells of the stomach are largely MUC1 negative.  
									
									
								 
								
										Stomach, corpus - Mucous producing glands of the stomach show a strong MUC1 positivity in this sample while the surface epithelial cells are largely MUC1 negative.  
									
									
								 
								
										Testis
									
									
								 
								
										Thymus - Some elements of corpuscles of Hassall’s show a weak to moderate MUC1 staining.  
									
									
								 
								
										Thyroid gland - A moderate apical MUC1 staining is seen in follicles, sometimes accompanied by a moderate to strong cytoplasmic staining.  
									
									
								 
								
										Tonsil - A fraction of squamous epithelial cells of tonsil crypts show a moderate to strong MUC1 staining. Plasma cells are also MUC1 positive. 
									
									
								 
								
										Tonsil, surface epithelium - A moderate to strong MUC1 immunostaining is seen in this non-keratinizing squamous epithelia of the tonsil surface. The staining is more prominent in the upper than in the basal layers
									
									
								 
								
										Urinary bladder, muscular wall
									
									
								 
								
										Urinary bladder, urothelium  - A moderate to strong MUC1 immunostaining can be seen in the urothelium. The staining is most prominent in the umbrella cells.  
									
									
								 
								
										Uterus, ectocervix  - A very faint membranous MUC1 immunostaining is seen in this non-keratinizing squamous epithelium from the ectocervix. 
									
									
								 
								
										Uterus, endocervix  - A strong cytoplasmic MUC1 immunostaining with apical predominance is seen in the endocervical epithelium.  
									
									
								 
								
										Uterus, endometrium (pregnancy) - A strong cytoplasmic MUC1 immunostaining with apical predominance is seen in the pregnant endometrium. Decidua cells are MUC1 negative.
									
									
								 
								
										Uterus, endometrium (proliferation) - A very strong MUC1 immunostaining is seen in the endometrium, where the stroma is also often MUC1 positive. 
									
									
								 
								
										Uterus, endometrium (secretion) - A very strong MUC1 immunostaining is seen in the endometrium, where the stroma is also often MUC1 positive.
									
									
								 
								
										Uterus, myometrium
									
									
								