Histology of cervix - Shotgun Histology скачать в хорошем качестве

Histology of cervix - Shotgun Histology

📌 𝐅𝐨𝐥𝐥𝐨𝐰 𝐨𝐧 𝐈𝐧𝐬𝐭𝐚𝐠𝐫𝐚𝐦:-   / drgbhanuprakash   📌𝗝𝗼𝗶𝗻 𝗢𝘂𝗿 𝗧𝗲𝗹𝗲𝗴𝗿𝗮𝗺 𝗖𝗵𝗮𝗻𝗻𝗲𝗹 𝗛𝗲𝗿𝗲:- https://t.me/bhanuprakashdr 📌𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗯𝗲 𝗧𝗼 𝗠𝘆 𝗠𝗮𝗶𝗹𝗶𝗻𝗴 𝗟𝗶𝘀𝘁:- https://linktr.ee/DrGBhanuprakash Histology of cervix Ectocervix ----------------- Stratified non keratinizing squamous epithelium Basal cells: deepest layer; dense nuclear chromatin, uniform oval nuclei oriented perpendicular to the basement membrane, scant cytoplasm Parabasal cells: located just above the basal cell layer; slightly more cytoplasm than basal cells; maybe multiple cell layers thick Intermediate cells: abundant cytoplasm which may be pink or clear due to glycogen accumulation Superficial cells: small, round nuclei; abundant pink or clear cytoplasm; cells flatten and are oriented parallel to the basement membrane Hormone responsive Superficial cells predominate in the early cycle due to estrogen Intermediate cells predominate in late-cycle due to progestins Loss of intermediate and superficial cells (atrophy) occurs postmenopause Rare melanocytes, Langerhans cells, and endocrine cells have been identified. Endocervix ------------------ Single layer of mucinous columnar cells with dense, uniform, oval, basally oriented nuclei and apical mucin Mucin has a pale bluish appearance in H&E preparations; with PAS-Alcian blue stain, apical mucin stains intense blue / purple (due to the presence of acid type mucin) Ciliated cells can be found (usually in the context of tuboendometrioid metaplasia) Inconspicuous underlying reserve cell layer Forms infoldings, clefts and glands of variable shape Transformation zone ---------------------------------- Metaplastic cells: formed by endocervical reserve cells differentiating toward squamous lineage Located at transition between glandular and squamous epithelia Similar appearance to parabasal cells with relatively scant cytoplasm and dense nuclei Endocervical epithelium may overlie metaplastic cells Variable nonspecific inflammatory infiltrate consisting of lymphocytes, plasma cells and even neutrophils is common and is not necessarily associated with infection Cervical stroma -------------------------- Mostly fibrous tissue with some haphazard smooth muscle fibers Blood vessels often numerous and prominent Mesonephric rests / remnants ------------------------------------------------- Remnants of involuted embryologic mesonephric (Wolffian) ducts Present in lateral cervical wall in ~33% of women Microscopic clusters of tubules lined by single layer of cuboidal cells with eosinophilic luminal secretions #histologyofcervix #cervixhistology #histologycervix #shotgunhistologycervix #shotgunhistology