endometrium

Endometrium




The endometrium is a mucosa of uterus which is continuously remodeled during the menstrual cycle. Its primary function is to create the optimum environment for implantation of the blastocyst after fertilization. It is sensitive to hormones (estrogen and progesterone). Before puberty the correct thickness is from 0.3 to 0.5 mm. It is important that the uterus does not have a submucosa tissue - muscle membrane connects to the mucous membrane directly.


Structure



a) monolayer cylindrical epithelium (also includes uterine glands);

b) stroma (or lamina properthat includes connective tissue and vessels).


Division of the stromal layer



a) functional (dense, spongy - peels off in the final luteal phase);

b) basal (regenerating - a building block to reproduce functional layer).

The variability of the endometrium according to menstrual cycle phase - during the follicular phase, estrogen concentration constantly increases, which stimulates the development of ducts glands, accumulation of glycogen and angiogenesis (the formation of spiral arteries). Endometrium is thickening, epithelium and glands are recreated. At the end, of the follicular phase corpus luteum secretes progesterone (the entrance to the luteal phase). Glands are still expanding and extending, also receive a rich vascularization from the spiral arteries. During this phase, stromal cells receive more glycogen, enzymes, lipids.

There is a variety of layers (compacted - decidual cells of the epithelium, spongy - ductus glands). After fertilization, progesterone concentration increases - it prepares the endometrium for implantation of the embryo. When there is no fertilization, corpus luteum dies and progesterone concentration decreases. It makes sudden ischemia, and later vasodilatation, which burst and pour blood on the outside. This leads to scaling of functional layer of the mucosa (menstrual period).


Pathology


The endometrium affects many types of diseases, the most popular are:

a) cancer of the uterus (closely associated with hormonal balance),

b) hyperplasia of the endometrium (endometrial hyperplasia with atypia or without atypia);

c) endometriosis (the presence of endometrial lesions outside the uterine cavity).

Adenocarcinoma adenoma anatomy bleeding cancer colon colonoscopy duodenum echocardiography emr endoscopy ent images esophagus for dental students for dentists gastroscopy Histopathology hysterectomy laparoscopy polyp polypectomy rectum robotic surgery stomach surgical education surgical technique surgical video case TUMOR ulcer varices

Treatment for Severe Endometriosis - Total Hysterectomy...

views: 10772 comments: 5
5

Total laparoscopic hysterectomy for severe endometriosis with dissection of the uterine arteries and the ureters are presented.

Total Laparoscopic Hysterectomy + Lymphadenectomy...

views: 3260 comments: 0
5

Surgical video case: for performing a hysterectomy one can use many energy devices. It's difficult to complete the entire procedure with a single energy device. To perform a laparoscopic hysterectomy,...

TLH + BSO

Marco Arones

Specialty:  Gynecology
views: 10970 comments: 2
3.75

Sure you have done many, so I leave a hysterectomy of "daily", as it could leave yesterday or tomorrow... a complex hyperplasia with atypia in postmenopausal woman, hence the tubal seal. I have...

Surgery of Endometriosis - Laparoscopic Method

views: 19762 comments: 0
5

Laparoscopic view on endometriosis followed by surgery.

Sticking Walls of Endometrium as a Result of...

Mounir El-Hao

Specialty:  Gynecology
views: 5512 comments: 0
2

In this presentation you can observe how to treat for endometrial wall stickness by hysteroscopy.

Rudimentary Horn/ Endometriosis / Chocolate Cyst

views: 3103 comments: 0
5

A case of left rudimentary non communicating horn with active endometrium lead to hematosalpinx with perforation and chocolate peritonitis.

New Resection Master Systeme And Endometrial...

Nabil Moulay

Specialty:  Gynecology
views: 7290 comments: 0
5

Author presents new resection master systeme and endometrial polyp.

New Resection Master Systeme And Endometrial...

Nabil Moulay

Specialty:  Gynecology
views: 6090 comments: 0
N/A

This video presents new resection master systeme and endometrial ablation.

Hysteroscopic Treatment Of Intr Uterine Endometrial...

Nabil Moulay

Specialty:  Gynecology
views: 8644 comments: 0
N/A

The author of this video presents hysteroscopic treatment of intr uterine endometrial polyp.

Hysteroscopic Resection Senile Polyp

Divyesh Shukla

Specialty:  Gynecology
views: 5464 comments: 0
3.5

Post menopausal senile polyp was diagnosed. Patient was asymptomatic. Patient also had 1 degree prolapse with cystocele for which she was not symptomatic. Bipolar 22fr resectoscope is used to resect the...