Uterine malignancy Flashcards
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What is endometrial hyperplasia
Overgrowth of endometrial glands and stroma
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
Describe carcinosarcoma / mixed malignant mullerian tumour
mixed tumour with malignant epithelial and stromal elements
Describe endometrial stromal sarcoma
tumour of endometrial stroma
mesenchymal origin
spindle cells
infiltrates myometrium and lymphovascular space
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
Describe carcinosarcoma / mixed malignant mullerian tumour
mixed tumour with malignant epithelial and stromal elements
Describe endometrial stromal sarcoma
tumour of endometrial stroma
mesenchymal origin
spindle cells
infiltrates myometrium and lymphovascular space
what is a leiomyoma / fibroid
benign smooth muscle tumour of the myometrium of the uterus
they are very common
What is a leimyosarcoma
malignant smooth muscle of the myometrium of the uterus
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
Describe carcinosarcoma / mixed malignant mullerian tumour
mixed tumour with malignant epithelial and stromal elements
Describe endometrial stromal sarcoma
tumour of endometrial stroma
mesenchymal origin
spindle cells
infiltrates myometrium and lymphovascular space
what is a leiomyoma / fibroid
benign smooth muscle tumour of the myometrium of the uterus
they are very common
What is a leimyosarcoma
malignant smooth muscle of the myometrium of the uterus
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
Describe carcinosarcoma / mixed malignant mullerian tumour
mixed tumour with malignant epithelial and stromal elements
Describe endometrial stromal sarcoma
tumour of endometrial stroma
mesenchymal origin
spindle cells
infiltrates myometrium and lymphovascular space
what is a leiomyoma / fibroid
benign smooth muscle tumour of the myometrium of the uterus
they are very common
What is a leimyosarcoma
malignant smooth muscle of the myometrium of the uterus
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
Describe carcinosarcoma / mixed malignant mullerian tumour
mixed tumour with malignant epithelial and stromal elements
Describe endometrial stromal sarcoma
tumour of endometrial stroma
mesenchymal origin
spindle cells
infiltrates myometrium and lymphovascular space
what is a leiomyoma / fibroid
benign smooth muscle tumour of the myometrium of the uterus
they are very common
What is a leimyosarcoma
malignant smooth muscle of the myometrium of the uterus
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
Describe carcinosarcoma / mixed malignant mullerian tumour
mixed tumour with malignant epithelial and stromal elements
Describe endometrial stromal sarcoma
tumour of endometrial stroma
mesenchymal origin
spindle cells
infiltrates myometrium and lymphovascular space
what is a leiomyoma / fibroid
benign smooth muscle tumour of the myometrium of the uterus
they are very common
What is a leimyosarcoma
malignant smooth muscle of the myometrium of the uterus
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
Describe carcinosarcoma / mixed malignant mullerian tumour
mixed tumour with malignant epithelial and stromal elements
Describe endometrial stromal sarcoma
tumour of endometrial stroma
mesenchymal origin
spindle cells
infiltrates myometrium and lymphovascular space
what is a leiomyoma / fibroid
benign smooth muscle tumour of the myometrium of the uterus
they are very common
What is a leimyosarcoma
malignant smooth muscle of the myometrium of the uterus
What hormone drives endometrial hyperplasia
Oestrogen
What categories of endometrial hyperplasia are there and what do they signify
Simple - increase in glands and stromal volume, normal cytology/nuclei
Complex - crowded glands with reduced stromal volume and normal nuclei
Atypical - like complex but nuclei are atypical and abnormal
List risk factors for endometrial cancer
age 50-60 OBESITY Lynch syndrome PCOS oestrogen only HRT nulliparity early menarche and late menopause
How does obesity lead to endometrial cancer
Adipocytes produce aromatase which converts androgens into oestrogen. Oestrogen stimulates endometrial proliferation
List malignancies that can occur in the endometrium
Type 1 tumours - endometrioid + mucinous
Type 2 tumours - serous + clear cell
Carcinosarcoma
Endometrial stromal sarcoma
What types of endometrial cancers are adenocarcinomas/epithelial
Type 1 - endometrioid and mucinous
Type 2 - clear cell and serous
Describe type 1 tumours
associated with unopposed oestrogen
PTEN, KRAS, PIK3CA mutations
usually has good prognosis
What is the precursor for type 1 tumours
atypical hyperplasia
Describe type 2 tumours
not associated with unopposed oestrogen, instead atrophic endometrium
more aggressive than type 1 tumours
Which is more common, type 1 or 2 tumours
type 1
What is the precursor for type 2 tumours and why is it clinically significant
serous endometrial intraepithelial carcinoma
can get peritoneal spread of this precursor
what mutation is associated with serous carcinoma of the endometrium
p53 mutation
How are endometrial carcinomas staged
1-4 1a - inner half of uterus 1b - outer half of uterus 2 - cervix 3 - local/regional spread 4 - metastases: need radiology
How are endometrioid carcinomas graded
Grades 1-3
1 - well differentiated
2
3 - poorly differentiated
What grade is automatically given to type 2 tumours
high grade
Describe carcinosarcoma / mixed malignant mullerian tumour
mixed tumour with malignant epithelial and stromal elements
Describe endometrial stromal sarcoma
tumour of endometrial stroma
mesenchymal origin
spindle cells
infiltrates myometrium and lymphovascular space
what is a leiomyoma / fibroid
benign smooth muscle tumour of the myometrium of the uterus
they are very common
What is a leimyosarcoma
malignant smooth muscle of the myometrium of the uterus