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{{ Infobox diagnosis | |||
| Name = {{PAGENAME}} | |||
| Image = Endometriosis_of_the_ovary.jpg | |||
| Width = | |||
| Caption = Endometriosis of the ovary. [[H&E stain]]. | |||
| Micro = at least 2 of 3: (1) endometrial glands, (2) endometrial stroma, (3) hemosiderin-laden macrophages | |||
| Subtypes = | |||
| LMDDx = [[adenocarcinoma]], [[endosalpingiosis]] | |||
| Stains = | |||
| IHC = CK7 +ve, ER +ve, [[CD10]] +ve (stroma), CK20 -ve, CDX2 -ve | |||
| EM = | |||
| Molecular = | |||
| IF = | |||
| Gross = chocolate cyst | |||
| Grossing = | |||
| Site = [[ovary]], uterine ligaments, cul-de-sac, [[peritoneum]], [[cervix]], [[vagina]], [[fallopian tubes]], surgical [[scar]]s, [[gastrointestinal tract]] | |||
| Assdx = infertility, [[endometrioid adenocarcinoma of the ovary]], [[clear cell adenocarcinoma of the ovary]], [[seromucinous borderline tumour]] | |||
| Syndromes = | |||
| Clinicalhx = | |||
| Signs = | |||
| Symptoms = +/-pelvic pain, +/-deep dyspareunia | |||
| Prevalence = common | |||
| Bloodwork = [[CA-125]] mildly elevated | |||
| Rads = | |||
| Endoscopy = | |||
| Prognosis = benign | |||
| Other = | |||
| ClinDDx = | |||
}} | |||
'''Endometriosis''' causes significant morbidity and is associated with increased risk of [[Endometriosis#Tumours associated with endometriosis|certain malignancies]]. | '''Endometriosis''' causes significant morbidity and is associated with increased risk of [[Endometriosis#Tumours associated with endometriosis|certain malignancies]]. | ||
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===Clinical=== | ===Clinical=== | ||
* | *Associated with infertility. | ||
* | *Pelvic pain. | ||
*Deep dyspareunia. | |||
*Affects approximately 10% of women of child bearing age. | *Affects approximately 10% of women of child bearing age. | ||
*Associated with moderate elevation of (serum) CA-125. | *Associated with moderate elevation of (serum) CA-125. | ||
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*Endometriosis can appear almost any where. | *Endometriosis can appear almost any where. | ||
**A well-reported uncommon location is the abdominal wall post-caesarian section.<ref name=pmid22381104>{{Cite journal | last1 = Ozel | first1 = L. | last2 = Sagiroglu | first2 = J. | last3 = Unal | first3 = A. | last4 = Unal | first4 = E. | last5 = Gunes | first5 = P. | last6 = Baskent | first6 = E. | last7 = Aka | first7 = N. | last8 = Titiz | first8 = MI. | last9 = Tufekci | first9 = EC. | title = Abdominal wall endometriosis in the cesarean section surgical scar: a potential diagnostic pitfall. | journal = J Obstet Gynaecol Res | volume = 38 | issue = 3 | pages = 526-30 | month = Mar | year = 2012 | doi = 10.1111/j.1447-0756.2011.01739.x | PMID = 22381104 }}</ref> | **A well-reported uncommon location is the abdominal wall post-caesarian section.<ref name=pmid22381104>{{Cite journal | last1 = Ozel | first1 = L. | last2 = Sagiroglu | first2 = J. | last3 = Unal | first3 = A. | last4 = Unal | first4 = E. | last5 = Gunes | first5 = P. | last6 = Baskent | first6 = E. | last7 = Aka | first7 = N. | last8 = Titiz | first8 = MI. | last9 = Tufekci | first9 = EC. | title = Abdominal wall endometriosis in the cesarean section surgical scar: a potential diagnostic pitfall. | journal = J Obstet Gynaecol Res | volume = 38 | issue = 3 | pages = 526-30 | month = Mar | year = 2012 | doi = 10.1111/j.1447-0756.2011.01739.x | PMID = 22381104 }}</ref> | ||
*Intraluminal endometriosis in the Fallopian tube - is relatively common,<ref>{{cite journal |authors=Hill CJ, Fakhreldin M, Maclean A, Dobson L, Nancarrow L, Bradfield A, Choi F, Daley D, Tempest N, Hapangama DK |title=Endometriosis and the Fallopian Tubes: Theories of Origin and Clinical Implications |journal=J Clin Med |volume=9 |issue=6 |pages= |date=June 2020 |pmid=32570847 |pmc=7355596 |doi=10.3390/jcm9061905 |url=}}</ref> it may be less obvious to the surgeon. | |||
===Images=== | |||
<gallery> | |||
Image: Endometriosis,_abdominal_wall.jpg |Endometriosis in C-section scar at cut-up. (Ed Uthman/WC) | |||
</gallery> | |||
==Microscopic== | ==Microscopic== | ||
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DDx: | DDx: | ||
*[[Adenocarcinoma]]. | *[[Adenocarcinoma]] - especially colorectal adenocarcinoma. | ||
*[[Endosalpingiosis]] - does not have stromal component. | *[[Endosalpingiosis]] - does not have stromal component. | ||
**In the GI tract, it classically expands the muscularis propria. | |||
===Images=== | ===Images=== | ||
<gallery> | |||
Image:Endometriosis_of_the_ovary.jpg | Endometriosis - ovary. (WC/Nephron) | |||
Image:Endometrioma1.jpg | Endometriosis - low mag. (WC/Nephron) | |||
Image:Endometrioma3.jpg | Endometriosis - high mag. (WC/Nephron) | |||
</gallery> | |||
Mimicking cancer: | Mimicking cancer: | ||
<gallery> | |||
Image:Intestine_with_endometriosis_-_low_mag.jpg | Endometriosis in the small intestine - low mag. (WC/Nephron) | |||
Image:Endometriosis_lymph_node_-_2_-_intermed_mag.jpg | Endometriosis in a lymph node - intermed. mag. (WC/Nephron) | |||
</gallery> | |||
www: | |||
*[http://path.upmc.edu/cases/case375.html Endometriosis - several images (upmc.edu)]. | *[http://path.upmc.edu/cases/case375.html Endometriosis - several images (upmc.edu)]. | ||
==Immunohistochemical stains== | ==Immunohistochemical stains== | ||
* | Features:<ref>{{cite journal |authors=Jiang W, Roma AA, Lai K, Carver P, Xiao SY, Liu X |title=Endometriosis involving the mucosa of the intestinal tract: a clinicopathologic study of 15 cases |journal=Mod Pathol |volume=26 |issue=9 |pages=1270–8 |date=September 2013 |pmid=23579618 |doi=10.1038/modpathol.2013.51 |url=}}</ref> | ||
*ER +ve | |||
**Stains the epithelium. | |||
*[[CK7]] +ve | |||
**Stains the epithelium. | |||
*[[CK20]] -ve | |||
**Used to exclude [[colorectal adenocarcinoma]]. | |||
*CDX2 -ve. | |||
**Used to exclude [[colorectal adenocarcinoma]]. | |||
*[[CD10]] +ve | |||
**Marks the stromal cells.<ref name=Ref_DCHH236>{{Ref DCHH|236}}</ref> | |||
==Sign out== | ==Sign out== | ||
===Biopsy=== | |||
<pre> | <pre> | ||
OVARIAN FOSSA, RIGHT, BIOPSY: | OVARIAN FOSSA, RIGHT, BIOPSY: | ||
- ENDOMETRIOSIS. | - ENDOMETRIOSIS. | ||
- FIBROADIPOSE TISSUE PARTIALLY COVERED BY MESOTHELIUM. | - FIBROADIPOSE TISSUE PARTIALLY COVERED BY MESOTHELIUM. | ||
</pre> | |||
<pre> | |||
CYST WALL, OVARY LEFT, CYSTECTOMY: | |||
- ENDOMETRIOSIS. | |||
</pre> | |||
<pre> | |||
CUL-DE-SAC, BIOPSY: | |||
- ENDOMETRIOSIS. | |||
COMMENT: | |||
A CD10 immunostain marks the endometrial-type stroma and confirms the presence of | |||
endometriosis. | |||
</pre> | |||
===Ovary and tube=== | |||
<pre> | |||
OVARY AND FALLOPIAN TUBE, LEFT, SALPINO-OOPHORECTOMY: | |||
- OVARY WITH ENDOMETRIOSIS. | |||
- FALLOPIAN TUBE WITHIN NORMAL LIMITS. | |||
- NEGATIVE FOR MALIGNANCY. | |||
</pre> | |||
===TAH-USO=== | |||
<pre> | |||
UTERUS, UTERINE TUBES, LEFT OVARY, TOTAL HYSTERECTOMY, BILATERAL SALPINGECTOMY | |||
AND LEFT OOPHRECTOMY: | |||
- LEIOMYOMATA WITH HYALINE CHANGE. | |||
- NONPROLIFERATIVE ENDOMETRIAL GLANDS WITH STROMAL DECIDUALIZATION, AND GLANDULAR | |||
DILATION. | |||
- LEFT OVARY WITH ENDOMETRIOSIS, SEE COMMENT. | |||
- LEFT UTERINE TUBE WITH ENDOMETRIOSIS, SEE COMMENT. | |||
- RIGHT UTERINE TUBE WITHIN NORMAL LIMITS. | |||
- UTERINE CERVIX WITHIN NORMAL LIMITS. | |||
- NEGATIVE FOR MALIGNANCY. | |||
COMMENT: | |||
The presence of endometrial stroma was demonstrated with CD10 immunostaining, thus | |||
confirming the presence of endometriosis. | |||
</pre> | </pre> | ||
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- RIGHT AND LEFT OVARIES WITH ENDOMETRIOSIS. | - RIGHT AND LEFT OVARIES WITH ENDOMETRIOSIS. | ||
</pre> | </pre> | ||
===Soft tissue abdominal wall mass=== | |||
<pre> | |||
MASS, RIGHT LOWER ABDOMEN, EXCISION: | |||
- ENDOMETRIOMA. | |||
- SCAR. | |||
COMMENT: | |||
Immunostains confirm the presence of endometriosis (glandular component ER positive, | |||
endometrial-like stroma CD10 positive). | |||
</pre> | |||
===Micro=== | |||
The sections show soft tissue with endometrial-type glands surrounded by endometrial-type | |||
stroma. Siderophages are present. No nuclear atypia is identified. Mitotic activity is not | |||
apparent. | |||
==See also== | ==See also== |
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