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| Normal Cervix | ||
| Etiology • Not applicable. | ||
| Pathogenesis • Not applicable. , | ||
| Epidemiology • Not applicable. | ||
| General Gross Description • Endocervical canal measures approximately 3.0 cms in length • Endocervical canal lined by deep longitudinal folds and abundant mucus • Internal cervical os is not clear cut as the endometrial-endocervical junction is not sharp • Somewhere near the end of the endocervical canal is the squamocolumnar junction • Squamocolumnar junction is visualized by pink endocervical epithelium meeting grey squamous mucosa • Supplied by uterine arteries; drain to pelvic lymph nodes •Examples: | ||
| General Microscopic Description • Endocervix is lined by a single layer of mucin-secreting cells with small often basilar nuclei and mucin filled cytoplasm. • Also may see ciliated cells and subcolumnar reserve cells. • Neuroendocrine cells can be detected with immunohistochemical staining. • Despite the appearance of glands and the use of the term endocervical glands the epithelium is simply deeply clefted. • Exocervix covered by stratified squamous non-keratinizing epithelium. (See Pap smear normals and squamous metaplasia for more details). •Examples: | ||
| References • Cotran RS, Kumar V, Robbins SL: Robbins Pathologic Basis of Disease. 5th ed. Philadelphia, W.B. Saunders, 1994, pp. 1024-1035. This link will directly take you to the relevant new literature Normal Cervix
| Synopsis by: Melinda Sanders M.D. (T83300M00100)[260]
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