[PATHO] DISEASES OF BODY OF UTERUS Flashcards
most common genital tract infection following delivery/abortion
acute endometritis (puerperal sepsis
puerperal sepsis
acute endometritis
acute endometritis gross picture
uterus: enlarged, soft, lined by purulent exudate
acute endometritis microscopic picture
endometrium: edematous, neutrophils, pus cells
later: endometrium becomes necrotic + myometritis
clinical picture of acute endometritis
abdominal pain
fever
purulent vaginal discharge
inflammation
abdominal pain
fever
purulent vaginal discharge
following abortion/delivery
uterus is enlarged, soft, edematous, lined by purulent exudate, neutrophils, pus cells
acute endometritis
follows abortion
assoc w/ retention of products of conception
postabortive endometritis
post-menopausal endometrial atrophy
postmenopausal bleeding
infiltration by lymphocytes & plasma cells
senile endometritis
types of chronic non specific endometritis
post-abortive
senile
most important diagnostic feautre of chronic NON SPECIFIC endometritis
plasma cells
TB endometritis occurs 2ry to
TB salpingitis
TB endometritis leads to
sterility
in TB endometritis endometrium is infiltrated by
multiple tubercles
in senile endometritis,
the endometrium is infiltrated by
lymphocytes
plasma cells
actinomyces israeli is common with
IUD
clinical feautres of endometritis
abdominal pain
fever
menstrual abnormalities
infertility & ectopic pregnancies can occur in chronic endometritis due to
damage & scarring of fallopian tubes
pyometria occurs due to
1-obstruction + infection
2-carcinoma
3-benign cervical stricture from senile atresia
4-after surgery
5-after cauterization
endometriosis definition
presence of endometrial tissue (stroma & glands) outside uterus
regurgitation theory of endometriosis
menstrual backflow through fallopian tube & subsequent implantation
metaplastic theory of endometriosis
endometrial differentiation from coelomic epithelium
extrapelvic endometriosis is explained by which theory
vascular/lymphatic dissemination theory
extrauterine stem/progenitor cell theory of endometriosis
circulating stem/progenitor cells from bone marrow differentiate into endometrial tissue
endometriotic tissue exhibits
1-↑inflammatory mediators (PGE2)
2-inflammation due to MQ recruitment + activation by stromal cells
3-stromal cells make aromatase–>estrogen production
4-
endometriotic tissue survival is enhanced by
inflammatory mediators
estrogen production
inflammation by MQ activation
endometriosis can be treated by
COX-2 inhibitors
Aromatase inhibitors
pelvic endometriosis sites (7)
1-ovaries
2-cervix
3-tubes
4-uterine ligaments
5-vagina
6-rectovaginal wall
7-pelvic peritoneum
A.chocolate cysts are seen in?
B. reason for their formation?
A.ovarian endometriosis
B.periodic bleeding at site of ovarian endometriosis
extrapelvic endometriosis sites (4)
1-laparotomy scars
2-vulva
3-umbilicus
4-appendix
Cl/P of endometriosis (3)
1-severe dysmenorrhea
2-pelvic pain
3-possible infertility
pelvic pain in endometriosis is due to
intrapelvic bleeding & intrabdominal adhesions
adenomyosis definition
growth of basal layer of endometrium down into myometrium
microscopic picture of adenomyosis
nests of stroma +/- glands in myometrium
what causes uterine wall thickening in adenomyosis
endometrial tissue triggers reactive hypertrophy of myometrium
adenomyosis effects (3)
-uterine enlargement & thickening
-dysmenorrhea
-pelvic pain
aetiology of endometrial hyperplasia
excess estrogen relative to progestin—>excessive endometrial proliferation
causes of excess estrogen in endometrial hyperplasia (4)
1-failure of ovulation w/ persistence of graafian follicle
2-prolonged estrogenic steroids use
3-estrogen producing lesions
4-obesity
estrogen producing lesions
polycystic ovary
granulosa-theca cell tumors
why does obesity lead to ↑estrogen
adipose tissue converts steroid precursors—>estrogen
gross picture of endometrial hyperplasia
uterus: moderately enlarged
endometrium:thickened, abundant, polyploid
types of endometrial hyperplasia
hyperplasia without atypia
hyperplasia with atypia
glands in hyperplasia w/o atypia are lined by
columnar epithelium w/ ↑mitosis
glands in hyperplasia w/atypia are lined by
atypical cells
endometrial intraepithelial neoplasm
(endometrial) hyperplasia with atypia
which type of endomertrial hyperplasia is associated w/ progression to cancer
hyperplasia w/ atypia
which type of endomertrial hyperplasia is associated w/ progression to cancer
hyperplasia w/ atypia
TTT in case of:
hyperplasia w/ atypia
patient no longer desiring fertility
hysterectomy
TTT in case of:
hyperplasia w/ atypia
young patient desiring fertility
high dose progestins
swiss cheese appearance is seen in
simple form endometrial hyperplasia
microscopic configuration of glands in endometrial hyperplasia
1.simple=↑size, number + cystic dilatation
2. complex= crowded back to back arrangement w/ outpouching & infoldings
microscopic picture of endometrial hyperplasia
1-stroma is cellular w/ ↑mitotic activity
2-glands:
a.lined by columnar epithelium+
↑mitosis
OR
b.lined by atypical cells
i.simple type
OR
ii.complex type
benign polyploid mass that arises from endometrial mucosa
endometrial polyp
presence of endometrial tissue outside uterus
endometriosis
presence of pus in endometrial cavity
pyometria
inflammation of endometrium
endometritis
growth of basal layer of endometrium down into myometrium
adenomyosis
exaggerated endometrial proliferation due to excessive estrogen relative to progestin
endometrial hyperplasia
neoplastic component of endometrial polyp
monoclonal stromal cells
menopause
irregular uterine bleeding
polyploid mass
glands are cystically dilated
endometrium resembling basalis
small muscular arteries
monoclonal stromal cells
endometrial polyp
malignant transformation of endometrial polyp
RARE
malignant transformation of endometrial hyperplasia
endometrial carcinoma
malignant transformation of leiomyoma
RARE
most common tumor in women
leiomyoma
endometrial polyps arise from
endometrial mucosa
leiomyoma arises from
uterine muscles
genetic predisposition in endometrial polyps
rearrangements of chromosomes 6 & 12
genetic predispositions in leiomyoma
rearrangements of chromosomes 6 & 12
leiomyoma is associated w/
estrogenic stimulation
chromo 6 & 12 rearrangement
leiomyoma gross picture (8)
1-uterus: enlarged, irregular, firm
2-sharply circumscribed
3-grey-white
4-rounded nodules
5-whorly cut surface!!
6-pseudocapsule!!
7-cystic degeneration
8-calcification
leiomyomas microscopic picture
-vascular stroma
-interlacing bundles of smooth muscle fibers & dense collagen bundles
cellular stroma seen in
endometrial hyperplasia
vascular stroma seen in
leiomyoma
whorly cut surface seen in
leiomyoma
pseudocapsule seen in
leiomyoma
pseudocapsule in leiomyoma is due to
compression of adjacent muscles
pathological changes in leiomyomas
1-hyaline changes + cystic degeneration
2-necrosis
3-infection & suppuration
4-calcification
5-red degeneration
6-rare malignant change
MC site of necrosis in large leiomyomas
center
red degeneration seen in
leiomyomas
red degeneration occurs due to
-thrombosis of vessels
-torsion of pedicle
red degeneration is associated with
pregnancy
oral contraceptives
red degeneration is associated with
pregnancy
oral contraceptives
a soft not firm hemorrhagic, necrotic leiomyoma has undergone
red degeneration
types of leiomyoma (3)
1-interstitial
2-submucous
3-subserous
interstitial leiomyoma site
within myometrium
submucous leiomyoma site
protruding into uterine cavity
subserous leiomyoma site
beneath serous covering
menopause
abdominal pain
vomiting
fever
enlarged firm uterus
greyish white
sharply circumscribed
whorly cut surface
interlacing bundles of smooth muscles & dense collagen
leiomyoma
clinically leiomyomas are associated with
-uterine bleeding
-urinary bladder disorders
-impaired fertility
-spontaneous abortion, fetal malpresentation, postpartum hg
leiomyoma of cervix
less common
solitary
cervical canal obstruction
MC invasive tumor of female genital tract
endometrioid carcinoma
endometrioid carcinoma is related to
-excess estrogen
-endometrial hyperplasia
-mutations: PTEN & DNA mismatch repair genes
Cowden syndrome
germline mutations in PTEN genes
Lynch syndrome
germline mutations in DNA mismatch repair genes
serous carcinoma arises in setting of
endometrial polyps
serous carcinoma is related to
mutations in TP53
TP53 mutatuons are detected by
immunostaining
After menopause 55-65 yo
leukorrhea
irregular uterine bleeding
localized polyploid mass OR diffuse irregular ulcerated necrotic endometrium
endometrioid carcinoma
risk factors of endometrioid carcinoma (5)
1-↑estrogen stimulation
2-infertility
3-diabetes
4-HTN
5-obesity
microscopic picture of endometroid carcinoma
normal glands
squamous differentiation
mucinous, serous differentiation
endometrioid carcinoma: squamous elements are benign
adenoacanthoma
endometrioid carcinoma: squamous elements are malignant
adenosquamous carcinoma
forms small tufts
papillae
high nuclear atypia
highly aggressive
serous carcinoma
Cl/P of carcinoma of endometrium
leukorrhea
irregular uterine bleeding
symptoms of spread
local spread of carcinoma of endometrium
cervix
ovaries
bladder
leiomyosarcoma arises
de novo from myometrium
gross picture of leiomyosarcoma
uterus: enlarged, soft
solitary bulky fleshy mass
invades wall/protrudes into uterine cavity
post-menopausal patient
soft enlarged uterus
solitary bulky fleshy mass
invades uterine wall
OR
protrudes into uterine cavity as polyploid mass
necrotic
atypia
↑mitotic activity
leiomyosarcoma
microscopic picture of leiomyosarcoma
necrosis
atypia
↑mitotic activity
leiomyosarcoma is differentiated from leiomyoma by
-necrosis
-atypia
-↑mitotic activity
causes of uterine bleeding in prepuberty
-precocious puberty
-hypothalamic, pituitary, ovarian disorders
causes of uterine bleeding in adolescence
anovulatory cycles
causes of uterine bleeding in reproductive age (4)
1-anovulatory cycles
2-ovulatory dysfunctional bleeding (inadequate luteal phase)
3-pregnancy complications (abortion, trophoblastic diseases, ectopic pregnancy)
4-organic lesions (leiomyoma,adenomyosis,polyps..)
causes of uterine bleeding in perimenopausal women
1-anovulatory cycle
2-irregular shedding
3-organic lesions (carcinoma, hyperplasia, polyps)
causes of uterine bleeding in postmenopausal women
1-organic lesions (carcinoma, hyperplasia, polyps)
2-endometrial atrophy