Adrenal gland

Aorta, media

Appendix, mucosa

Appendix, muscular wall

Bone marrow

Breast

Bronchus, mucosa

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

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

Epididymis – A moderate Napsin A positivity is seen at the apical pole of the glandular cells in the cauda but not the corpus of the epididymis

Epididymis

Esophagus, squamous epithelium

Fallopian tube, mucosa

Fat

Gallbladder, epithelium

Heart muscle

Ileum, mucosa

Kidney, cortex – Proximal tubuli are more strongly positive than distal tubuli and some collecting ducts can also stain positive

Kidney, medulla

Liver

Lung – Strong napsin A staining of macrophages while staining intenity is less in type II pneumocytes

Lung – Type II pneumocytes and alveolar macrophages are strongly Napsin A positive

Lymph node

Ovary, stroma

Pancreas

Parathyroid gland

Parotid gland

Pituitary gland, anterior lobe

Pituitary gland, posterior lobe

Placenta (amnion)

Placenta (chorion)

Placenta, early

Placenta, mature

Prostate

Rectum, mucosa

Seminal vesicle

Sinus paranasales

Skeletal muscle

Skin

Spleen

Stomach, antrum

Stomach, corpus

Testis

Thymus

Thyroid gland

Tonsil

Tonsil, surface epithelium

Urinary bladder, muscular wall

Urinary bladder, urothelium

Uterus, endocervix

Uterus, endometrium (pregnancy) – A strong napsin A immunostaining is seen in an endometrium gland

Uterus, endometrium (pregnancy) – A variable napsin A immunostaining is seen in endometrium glands

Uterus, endometrium (proliferation)

Uterus, endometrium (secretion)

Uterus, etocervix

Uterus, myometrium