3Endometrial cancer Epidemiology: Age: Median age (or mean age? Which is more accurate?) is 61 y.75-80% of women are postmenopausal, and 3-5% being less than 40 years old, it peaks in the years before the menopause and plateau after that. “Another peak of EC is in the 40s”Country variations: Highest in north America.Racial variations: MORE IN Whites.
4Endometrial cancer Aetiology: Unknown. Unopposed estrogen. So it is more in women with:NulliparityAnovulationPCOS (during their life) (because it comprises hyeprestrogenism and failure of ovulation)Late MenopauseFunctioning ovarian tumor. Estrogen producing. Granulose and theca cell tumor.Unopposed estrogen therapyObesity
5Endometrial cancer8. Personal or family history of breast or colon cancer, and family history of endometrial cancer.9. Tamoxifen therapy (Has estrogenic-type effect on the uterus in particular. Anti-estrogen effect on other organs… Only on the uterus it is agonist).HRT While Combined oral contraceptive pills and progesterone decreases the incidence of endometrial cancer (Only because they contain progesterone which antagonizes the action of estrogen. Even in the combined pill, progesterone counteracts the action of estrogen.)
6Endometrial cancer Pathology Endometrial adenocarcinoma: Is the commonest about 90%.Endometrial adenocarcinoma with squamous metaplasia (adenoacanthoma)Adenosquamous carcinomaPapillary serous and clear cell carcinoma are very rare.90%10%UterusAdenocarcinomaSquamousCervix
7Endometrial hyperplasia Cystic hyperplasia: The most common type, rarely seen in association with endometrial cancer. risk of progression to cancer is %. Benign hyperplasia because the chance of changing into malignant. Not precancerous lesion.Adenomatous hyperplasia: Rate of progression to cancer or coexistence with cancer is 0-3.4% Cystic and adeomatous are benign forms of endometrial hyperplasiaAtypical hyperplasia: Carcinoma may coexist in 25-50% of cases. And progression to cancer occurs in the rate of 22-33%. Precancerous lesion. If she completed her family,Considered as “stage 0” endometrial cancer”Or given progesterone for 9 months, take biospy. If the abnormality disappeared, the problem ended and she can get pregnant.Endometroid ovarian cancer may co-exist
8Endometrial hyperplasia Presentation of hyperplasia:Post-menopausal women will present with abnormal bleeding.Before the menopause: irregular or heavy periodsPerimenopausal bleeding.
9Endometrial hyperplasia Investigations:D&COvarian ultrasound to exclude Estrogen producing and endometroid tumor.CA 125Estradiol estimation.
10Endometrial hyperplasia Management: depends on the severity of the condition and her fertility aspirations.Cystic and adenomatous hyperplasia: No special follow up and management depends on further symptoms of abnormal bleeding.Benign forms of hyperplasiaAtypical hyperplasia: Hysterectomy and bilateral salpingo-oophorectomy. However, in young women who want to keep the uterus, give Progesterone for 8-12 months and repeat D&C.It is considered to be “Stage 0 endometrial cancer”.
11Endometrial cancer Diagnosis and investigations: Presenting symptoms: Abnormal bleeding. Postmenopausal bleeding in 75-80% of women,.A woman who is 60 and gets a single drop of blood, she will doubt it because 10 years since last menses… So better survival rate because most of the cases are discovered at early stage. Only one single drop of blood is enough to make the woman worry. If you examined her.Next common cause: Senile vaginits. But even if you saw senile vagina, yo have to do diagnostic biopsy.Pain in late stages. Clinical examination: Rarely helpful.Look for: enlarged lymph nodes in the groin or supraclavicular area, metastasis in the posterior vaginal wall, uterus may be enlarged,
12Endometrial cancer: Investigations Endometrial biopsy can be done as an outpatient procedure with special cannula (failure rate 20%)Ultrasound: vaginal USS to detect tick endometrium in post-menopausal women, ovarian pathologyD&C under GAHysteroscopy
13Endometrial cancer: Spread of invasive disease: Direct: Myometrium,Lymphatic: Para-aortic Lymph nodesSpread to the cervix may occur by extension, but more commonly through lymphatic.Blood: rarelyMode of spreading depends on the type of tumor:Any epithelial tumor spreads by lymphatics and is slowerSarcoma: Spreads by blood (Very rapid and can kill quickly and will go quickly to the brain, liver, etc. )
14Endometrial cancer Prognostic factors: Stage of the disease Myometrial invasionDegree of differentiationTumor sizeAge
15FIGO staging of Endometrial cancer StageIaG tumor limited to the endometrium.Ib G Invasion <0.5 cm myometriumIc G Invasion >0.5 cm myometriumIIa G endocervical glandular involvement onlyIIbG Cervical stromal invasionIIIaG123:Tumor involves serosa or adnexa (ovaries or tubes) or + ve peritoneal cytology.IIIbG123:Vaginal metastasisIIIc G123:Metastasis to pelvic and/or Para-aortic lymph node.Iva: tumor invades bladder and or bowel mucosaIVb: Distant metastasis including intra-abdominal or inguinal lymph nodes.G123:referred to the grade of differentiation tumor (1 = well differentiated, 2=moderately, 3 poorly differentiated).a, b, c: Depends on invasion of the tumor to the myometrium.If stage II: it reached cervix and is treated as cervical cancer.
16Endometrial cancer: Management Stage I : TAH+BSO which could be done either vaginally or abdominally.Radiotherapy: vault radiation or external radiation to the whole pelvis.Vaginal radiation to the vault to minimize vault recurrence.Pelvic radiation advised in women with poor prognostic factors such as invasion more than half way through the myometrium, high grade and large tumorAdjuvant progesterone therapy: can be used in advanced and recurrent disease.
17III and IV: no place for surgery III and IV: no place for surgery. Because you are not aiming at treating the patient. Radiotherapy only. Some give progesterone but is hopeless.Stage II: Only limited to uterus. Luckily , this is the most common presentation. Total abdominal hysterectomy, and bilateral salpingectomy, and maybe omenectomy. If histopathology, showed it involved > 50% of wall or poorly differentiated tumor of deposits in cervix or tubes, you need to give them post-operative radiotherapy. Otherwise, no need for radiotherapy.Management: ???Stage II. Treated as cervical cancer :Radical Hysterectomy (Whertimes) and pelvic lymph nodes removal + Radiation
18Endometrial cancer Management Stage III : If there is parametrial extension of the disease or vaginal involvement, patient should have CT scan of the pelvis and upper abdomen.If the tumor is confined to the pelvis, radiation is the choice. If there is spread to the adnexa, do pelvic clearance + Omentectomy as for primary ovarian tumor.
19Endometrial cancerStage IV. The lung are most common sites of metastasis followed by peripheral lymph nodes. Radiation or cytotoxic drugs and hormonal treatment may be required.
20Endometrial cancer Hormone replacement therapy: It safe to use estrogen in women with stage I-II.If the disease has been removed surgically or by radiation, then Estrogen has no bad effect on the disease.Stage II: Cervical tumor is considered as. The cornerstone stone of treatment. Ia: only cone biospy or simple hysterectomy.1b or 2a: Radical or Wertheim hysterectomy. Ovaries, tubes, parametrial tissue until you reach the ureters. Block dissection of all of pelvic LNs c(Common iliac, internal iliac, external iliac, obturator, and presacral LNs)Why remove ovaries: EC is estrogen dependent tumor.Also, they share the same lymphatics. So there is cross spread of the two tumors. If endometrial cancer, it might spread via the lymphatics to the ovaries. Vice versa, an ovarian cancer can spread via lymphatic to endometrium. Treatment of ovarian cancer and stage Ia??? Is the same (hysterectomy, bilateral salpingo-oophorectomy, and maybe omentectomy.Paraaortic drainage2b and above: radiotherapy alone.Wertheim (veer-time) operation (Austrian gynecologist):a radical operation for carcinoma of the uterus in which as much as possible of the vagina is excised and there is wide lymph node excision.
21Endometrial cancer 5 years survival rate Stage 1 =83%, (in some studies, the doctor saw up to 92%)stage 2= 71%,stage 3=39%,stage 4=27%,all stages= 60%, IN UK, 73%
22When does a patient need post-operative radiation: Poor differentiationMore than 50% of myometrium or more than 0.5 cmMicroscopic deposits in …What is the aim of radiation? Because more chance of lymphatics involvement in such cases .
23Endometrial cancerRecurrent disease:70% of all recurrences occurred in the first 2-3 years. Early recurrence carry poor prognosis.Can be in any site, but mainly is in the pelvis
24Endometrial cancerSites of recurrence: Pelvis, vagina, peritoneal cavity, lungs, liver, bone, inguinal and supraclavicular lymph nodes.Vault recurrence is more common after surgical treatment which can be cured.Progesterone therapy has a response rate of 15-20%, G1 will respond better than G2&3Cytotoxic drugs has small role following failure of hormonal therapy.Radiation maybe the only therapy. Very poor prognosis.
26Challenging Rare → Limited data 2% to 5% of all uterine malignancies Prognosis, behavior Not enough dataEC: 2-3 cases/ year… US once in 10 years because is very rare.Rapidly growing (doubling time is 4 weeks)Rapidly spreading: Kill quickly because is through BCtend to be increasing
27Risk Factors Prior pelvic radiation (10%-25% of cases) Women with cervical cancer, stage Ib or more, this lady might come years later with US. Generally, all stage of cervical cancer can be treated by radiation (either surgery alone or surgery + radiation) Surgery without radiation in stage 1b and IIa (because you can simply do cone biopsy or simple hysterectomy)3X increase in risk among black womenAn increase in the risk of uterine sarcomas appears to accompany the use of long-term adjuvant tamoxifen in women with breast cancer.Tamoxifen on uterus: poly, ??/ and cancerShould be considered in postmenopausal women with a pelvic mass, abnormal bleeding, and pelvic pain, where the incidence of sarcoma is 1 to 2 percentMenopause is a treatment for fibroids!If post-menopausal, it is very likely to be cancer. If there is a mass with post-menopausal, almost always sarcoma
28Cervical cancer and pregnancy: T1 + t2: as if she is not pregnant Wertheim (pron.: veer-time) operation “radical” Not total hysterectomy. After radiation, she will abort.Late: wait until end of pregnancy and then Wertheim. After 2 weeks, radiation.
30Leiomyosarcoma Arise from smooth muscles of the uterus usually de novo appear grossly as a large (>10 cm) yellow or tan solitary mass with soft, fleshy cut surfaces exhibiting hemorrhage and necrosis
31LeiomyosarcomaYellowish, necrosis, and hemorrhagic area. It reaches 10 cm
32Leiomyosarcoma: Low or high grade Frequent mitotic figuressignificant nuclear atypiapresence of coagulative necrosis of tumor cells
33Endometrial stromal tumors : A pure homologous neoplasmBecause there is no other tissueSubtypes: low and high grade malignanciesBased on the number of atypiaLow grade : slow growing tumors with infrequent metastasis or recurrence after therapy.high grade : enlarge and metastasize quickly and are often fatal.
34Mixed mullerian sarcomas Both carcinomatous and sarcomatous elements must be present in this type of sarcoma.CT tumor and epithelial tissue trauma at the same time.Behavior of sarcoma wins again behavior of carcinoma (because it is blood not lymphatics)metastasize early in the course of the disease via hematogenous and lymphatic pathwaysgrows as a polypoidal mass with a broad base
35Mixed mullerian sarcomas Mixed mullerian homologous sarcomas (carcinosarcoma) contain only tissue elements that are indigenous to the uterus.In contrast, if exogenous tissue not normally found in the uterus is present (eg, bone, cartilage), the tumor should be classified as a mixed heterologous mullerian sarcoma (mixed mesodermal sarcoma).
36MMT Mixed mesodermal tumor (you can find bone and calcifications)
37Adenosarcoma both malignant stromal and benign epithelial components a significantly increased occurrence of this tumorpresent as polypoid masses in the uterusSarcoma and adenocarcinoma
38Clinical DiagnosisVaginal bleeding is the most common presenting symptom of a uterine sarcoma.On pelvic examination, the uterus is enlarged and, in some patients, part of the tumor may protrude from the uterine cavity through the cervical os.Rapidly growing!Spreads mainly by blood
39EvaluationUltrasound examination, MRI, or CT scan cannot reliably distinguish between a sarcoma, leiomyoma or endometrial cancerThe real diagnosis of uterine sarcomas is made from histologic examination of the entire uterusMake histology and take the whole sample for examination
40Staging: surgical based on FIGO staging for endometrial cancer DescriptionStageSarcoma is confined to the corpusISarcoma is confined to the corpus and cervixIISarcoma has spread outside the uterus but is confined to the true pelvisIIISarcoma has spread outside the true pelvisIV
41Treatment Surgery: is the only curative therapy for uterine sarcomas Modalities:Surgery (total abdominal hysterectomy, bilateral salpingo-oophorectomy).Surgery plus adjuvant chemotherapy.Surgery plus adjuvant irradiationAggressive surgical cytoreduction at the time of initial diagnosis offers the best survivalSurgery and chemotherapy is the best combination. Never leave any part of the tumor: Cytoreduction: remove as much as you can of the tumor.Cytoreductive therapy: therapy with the intention of reducing the number of cells in a lesion, usually a malignancy.
42The five year survivals: What adds to the survival rate? Surgery alone (46 %)Surgery and radiotherapy (62 %) [improved by 16% so it is something!)Surgery and chemotherapy (43 %)Radiation alone (8 %)
43three-year local recurrence rates No adjuvant treatment 62 %If you did not use anything Whole pelvis external beam radiation therapy 31 %Radiation: recurrence is worse than primary tumorChemotherapy alone 71 percentTechnically, it is not useful. It may be harmful.
44Complications of Radiation Tx: like what you took in the past!!! Acute:PerforationFeverDiarrheaBladder spasmChronic:ProctitisCystitis (a/w UTI)Fistula (Fistulas can be caused by either surgery or radiation)Enteritis
45Adjuvant chemotherapy The role of chemotherapy in the treatment of uterine sarcomas has been limitedOr at least, try new chemotherapeutic agents
46Hormone therapyEstrogen, progesterone, and other hormone receptors are present in leiomyosarcomas and endometrial stromal sarcomas but do not predict hormone responsiveness.In fact, only one of 28 patients with residual or recurrent disease following surgery had an objective response to hormone therapy
47Recurrent DiseaseMost relapses occur in the pelvis, followed by lung and abdomenCurrently, no standard therapy for patients with recurrent diseaseMost will go for radiotherapy because they are not aiming at curing the patient!!!
48Prognosis Poor prognosis: The 5-year survival : stage I less than 50% Remaining stages : 0% to 20%.Poor prognostic factor of leiomyosarcoma:Age over 50 yearsSize greater than 5 cm