BENIGN LESIONS OF UTERUS
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Transcript of BENIGN LESIONS OF UTERUS
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UTERUSNUR HANISAH BINTI ZAINOREN
BENIGN LESIONS of
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CONTENTS
UTERINE POLYPSFIBROMYOMASADENOMYOSIS
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UTERINE POLYPS
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Uterine polyps are benign polyps comprising endometrial, fibroid, adenomyomatous and
placental polyp
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Endometrial polyp• Mostly arises from hyperplasia of endometrium
• Some of the endometrial lining protruding into the uterine cavity as polyps
• Composed of endometrial glands and stroma covered with a single layer of columnar epithelium
• Secondary malignant change may occur
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- Single/multiple- Pink swellings- 1-2cm in diameter- With a pedicle
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Placental polyp• Formed from retained placental tissue
• May cause:– Secondary postpartum hemorrhage – Intermittent vaginal bleeding following an
abortion or normal term delivery
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Clinical features• Menorrhagia• Metrorrhagia• Postmenopausal bleeding• Postcoital bleeding (if it protrudes through the os)
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Diagnosis• Clinically, uterine polyp may not be evident and uterus
may or may not be enlarged• It is easy to diagnose when the polypus protrudes
through the cervical canal
• Ulrasound can detect the uterine polyp• Saline sonosalphingogram/hysterosalphingogram
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Management • D&C can scrape the polyp• Hysteroscopic removal of multiple polyps may
be desirable to ensure their complete removal.
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FIBROMYOMAS
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Other names
= Fibroids= Leiomyomas= Myomas
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Commonest benign tumor of the uterus
Commonest benign tumor in female
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fibromyoma
Tumor is composed of fibrous connective tissue and smooth muscle
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• Incidence:– At least 20% of women at the age of 30 have got
fibroid in their wombs–50% remains asymptomatic– Incidence higher in black women– More common in nulliparous/one child infertility
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Prevalence: highest between 35-45 years
(childbearing age group)
Rarely before 20 years
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Risk factors for fibroidIncrease
–Nulliparity–Obesity–Hyperestrogenic
state–Black women
Decrease –Multiparity– Smoking • (due to associated
hypoestrinism)
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Predominantly an estrogen-dependant tumor
• Evidenced by:– Potentially limited during child-bearing period– Increased growth during pregnancy– Rarely occur before menarche– Cessation of growth and there is no new growth at all following menopause– Contain more estrogen receptors than the adjacent myometrium– Frequent association of anovulation
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GROWTH
Not squarely distributed amongst the fibroids which are usually multiple
Some grow faster than the others
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On the whole, rate of growth is
SLOWTakes about 3-5 years for the fibroid to grow sufficiently
to be felt per abdomen
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grows RAPIDLY During pregnancy Amongst pill users (high dose pills) Due to malignant change *the newer low dose
OCP are not associated with increase in the growth of a fibroid
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Types
Body (Corporeal
)
Intramural (75%)
Subserosal (15%)
Submucosal (5%)Cervical
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Fibroids are usually located in the body and are usually multiple
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Initially, fibroids are intramural in position
but subsequently, some are pushed
outward or inward
about 70%persist in that position
INTERSTITIAL/INTRAMURAL
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Intramural fibroid is pushed outwards
towards the peritoneal cavity
SUBSEROSAL/SUBPERITONEAL
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When it completely covered by peritoneum,
it usually attains a pedicle – “pedunculated
subserosal fibroid”
SUBSEROSAL/SUBPERITONEAL
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On rare occasion, the pedicle may be torn; the
fibroid gets its nourishment from the omental or mesenteric
adhesions – “wandering/parasitic
fibroid”
SUBSEROSAL/SUBPERITONEAL
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Intramural fibroid, when pushed toward the
uterine cavity and is lying under the endometrium
SUBMUCOSAL
Can make the uterine cavity IRREGULAR &
DISTORTED
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Least commonbut
MAXIMUM symptoms
SUBMUCOSAL
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Pedunculated submucosal fibroid may
come out through the cervix
SUBMUCOSAL
May be infected/ulcerated to
cause METRORRHAGIA
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Rare (1-2%)CERVICAL
May be anterior, posterior, lateral or central
May displace the cervix or expand it so much that the
external os is difficult to recognize
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SECONDARY CHANGES IN FIBROIDS• Degenerations
• Atrophy
• Necrosis
• Infection
• Vascular changes
• Sarcomatous changesDANIVaS
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• Degenerations:– Hyaline degeneration– Cystic degeneration– Fatty degeneration– Calcific degeneration– Red degeneration
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• Atrophy: due to loss of support from estrogen– following menopause – Following pregnancy enlargement
• Necrosis: due to circulatory inadequacy (central necrosis of the tumor )– Pedunculated subserous fibroid
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• Infection: access through the thinned and sloughed surface epithelium of the submucous fibroid. – Following delivery or abortion– Intramural fibroid may also be infected following
delivery.
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• Vascular changes: Telangiectasis (dilatation of the vessels) or lymphangiectasis (dilatation of the lymphatic channels)
inside the myoma may occur. Cause is not known.
• Sarcomatous changes: may occur in <0.1% cases. The usual type is leiomyosarcoma.
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Other Complications • Hemorrhage
– Intracapsular– Ruptured surface vein of
subserous fibroid intraperitoneal• Polycythemia
– Erythropoietic function by the tumor
– Altered erythropoietic function of the kidney through ureteric pressure
• Torsion of subserous pedunculated fibroid
• Inversion of uterus• Endometrial carcinoma
associated with fibromyoma• Endometrial and
myohyperplasia• Accompanying adenomyosis• Parasitic fibroid
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Symptoms Menstrual disturbances
Infertility, recurrent abortions
Pain
Pressure symptoms
Abdominal lump
Vaginal discharge
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Symptoms Menstrual disturbances
Infertility, recurrent abortions
Pain
Pressure symptoms
Abdominal lump
Vaginal discharge
• Menorrhagia • Conspicuous in IM & SM fibroid• due to increased vascularity, endometrial
hyperplasia & enlarged uterine cavity
• Metrorrhagia/irregular bleeding• Ulceration of SM fibroid or fibroid polyp• Torn vessels from the sloughing base of polyp• Associated endometrial carcinoma
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Symptoms Infertility, recurrent abortions
Infertility, recurrent abortions
Pain
Pressure symptoms
Abdominal lump
Vaginal discharge
• Infertility:• Distortion / elongation of uterine cavity
difficult sperm ascent• Poor rhythmic uterine contraction during
intercourse impaired sperm transport• Menorrhagia and dyspareunia
• Recurrents abortions:• Defective implantation• Poorly developed endometrium• Reduced space for the fetal growth
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Symptoms Pain
Infertility, recurrent abortions
Pain
Pressure symptoms
Abdominal lump
Vaginal discharge
• Usually painless
• Pain may be due to some complications of the tumor / associated pelvic pathology
• Due to tumor:• Degeneration• Torsion• Extrusion of polyp
• Associated pathology:• Endometriosis• PID
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Symptoms Pressure symptoms
Infertility, recurrent abortions
Pain
Pressure symptoms
Abdominal lump
Vaginal discharge
• Bladder frequency and retention of urine
• Ureter hydroureter & hydronephrosis (in broad ligament
fibroids)
• Rectum constipation (rare)
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Symptoms Abdominal lump
Infertility, recurrent abortions
Pain
Pressure symptoms
Abdominal lump
Vaginal discharge
• Heaviness in the lower abdomen
• A pedunculated fibroid feels separate from the uterus and gives impression of ovarian tumor
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Symptoms Vaginal discharge
Infertility, recurrent abortions
Pain
Pressure symptoms
Abdominal lump
Vaginal discharge
• Rare • Often blood-stained
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Physical signs• Anemia• Abdominal lump– Arising from pelvis– Well-defined margins– Firm in consistency– Smooth/bossy surface– Mobile from side to side unless fixed by large size or
adhesions
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• Bimanual examination:– Enlarged uterus– Cervix moves with the swelling
which is not felt separate from uterus unless it is pedunculated
– In cervical fibroid, the normal uterus is perched on top of the tumor
– Broad ligament fibroid displaces the uterus to the opposite side
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Differential diagnosis ?
Pregnancy Full bladderHaematometra/
pyometra
AdenomyosisBicornuate
uterusEctopic
pregnancy
Chronic PIDBenign/malignant
ovarian tumor
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Investigations• Haemoglobin, blood grouping• Ultrasound abdomen & pelvis• Hysterosalphingography (to identify submucous myoma)• Hysteroscopy• D&C (to rule out endometrial cancer)• Laparoscopy• MRI (to identify adenomyosis and myoma)
In majority cases, the clinical features are clear cut. Elaborate investigations are not required.
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MANAGEMENT PROTOCOL OF UTERINE FIBROIDS
BODY
SYMPTOMATIC
MEDICAL SURGERY
MYOMECTOMY, HYSTERECTOMY,
MYOLYSIS, EMBOLOTHERAP
Y
ASYMPTOMATIC
REGULAR SUPERVISION (6 MONTHS
INTERVAL)
IF SIZE INCREASE & SYMPTOMS APPEAR SURGERY
SURGERY
IF SIZE >12 WEEKS, DX
UNCERTAIN, UNEXPLAINED ABORTION/INF
ERTILITY, PEDUNCULATED
CERVIX
SUPRAVAGINAL
MYOMECTOMY HYSTERECTOMY
VAGINAL
MYOMECTOMY POLYPECTOMY
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MEDICAL MANAGEMENT
To improve menorrhagia and to correct anemia before surgery
To minimize the size and vascularity of the tumor in order to facilitate surgery
As an alternative to surgery in postmenopausal women or women with high-risk for surgery
Where postponement of surgery is planned temporarily
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• Antiprogesterones– Mifepristone (daily dose of 25-30mg for 3mo)
• Danazol– 200-400mg divided dose for 3mo
• GnRH analogs– Agonists (luporelin, goserelin, buserelin, nafarelin)– Antagonists (cetrorelix, ganirelix)
• PG synthetase inhibitor - to relieve pain
To minimize blood loss
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Levonogestrel-releasing intrauterine system
(LNG-IUS)
Reduce the size and vascularity of the fibroid
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Fibroids complicating pregnancy
Pregnancy generally cause an increase in the size of the fibroids – Increase vascularity– High tendency to undergo
degenerative changes
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Red degeneration
result of the softening of
the surrounding supportive
tissue
capillaries tend to rupture
blood effuses out into the
myoma (diffuse reddish
discolouration)
severe acute abdominal
pain (restricted to
the site of fibroid uterus)
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ADENOMYOSIS
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Common condition in which islands of endometrium are found in the wall of the
uterus
“UTERINE ENDOMETRIOSIS”
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• Observed frequently in elderly women• Women are usually parous• Around the age of 40 years• The disease often coexists with uterine
fibromyomas, pelvic endometriosis (15%) and endometrial carcinoma
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Gross examination• Uterus appears symmetrically enlarged to not more than
14-weeks size
• Cut section may show only a localized nodular enlargement
• Affected area reveals a peculiar, diffuse, striated and non-capsulated involvement of the myometrium, with tiny dark hemorrhagic areas interspersed between
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Histological examination• Islands of endometrial
glands surrounded by stroma, in the midst of endometrial tissue beyond the myometrial junction
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Symptoms • Menorrhagia • Progressively increasing dysmenorrhea• Pelvic discomfort• Backache• Dyspareunia
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Clinical examinations• Symmetrical enlargement of the uterus (if
adenomyosis is diffused)• Tender uterus• Uterine enlargement – rarely exceeds that of 3
months’ pregnancy
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Differential diagnosis• A localised adenomyosis asymmetrical enlargement
of uterus – resembles myoma
• A myoma of this size is rarely painful
• Therefore, menorrhagia, with painful, assymmetrical enlargement of the uterus suggests adenomyosis
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Investigations • Pelvic ultrasound• MRI
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Medical Treatment • Non-steroidal anti-inflammatory drugs
(NSAIDs) • Hormonal therapy• Danazol• GnRH • Mirena IUCD
For menorrhagia and pain
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Treatment • Diagnostic hysteroscopy + D&C
– Initial step in the management of adenomyosis because of menorrhagia
• Total hysterectomy (elderly women who passed the age of childbearing)
• Localized excision– Younger women with localized adenomyosis– Anxious to have a child
• Transcervical resection of endometrium (TCRE) – Effective for about 2 years
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That’s all!
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Thank You