-
Ovaries
Homogenous texture, change with cycle LH&FSH, volume 8cc or less after menopause, Abnormal size if volume more than doubled, shrinks after menopause, normal volume up to 22 cc, mature oocytes til ovulation, synthesize androgens and convert to estrogen, produce progesterone after ovulation until 12wks preg, 3-5x2x2
-
Follicular cyst
- Most common ovarian cyst,fluid in non dominant follicle is not reabsorbed
- unilateral, asympt, usually <2cm- may grow 1-8cm, regress sponateneously
-
Simple Cysts
- follicle enlarges to 24mm... ovulation... corpus luteum (1-10cm)- functional cyst.
- Surgery for post menopausal cysts >5cm or sepations/solid nodules
-
Common cystic or homogenous masses
- follicular cyst
- corpus lutem of pregnancy
- cystic teratoma
- para ovarian cyst
- hydrosalpinx
- endometrioma
- hemorrhgic cyst
-
Common complex cysts
- Cystadenoma
- dermoid cyst
- tubo ovarian abcess
- ectopic pregnancy
- granulosa cell tumor
-
Common solid masses
- solid teraroma
- adenocarcinoma
- arrhenoblastoma
- fibroma
- dysgerminoma
- torsion
-
serous and muscionous- more common benign? malignant?
- muscionous more common benign
- serous cyst adenocarcinoma more commone malignant
-
malignant tumors
more sonographically complex with ascites,papillae, thick sepations, solid echogenic,irreg walls, solid nodules, usually 5cm or > to be surgically removed
-
Pulsatility Index (PI)
PS-ED/mean velocity
-
Resistive Index (RI)
PS-ED/PS
-
Functional cysts
- normal function of ovary
- follicular, corp lut, hemorrhagic, theca lut
- less than 5 cm
-
Corpus Luteum cysts
hemorrhage in mature corpus luteum, usually <4cm, 1-10cm, maintain IUP til 12 wks, pain- mimic ectopic
-
Hemorrhagic cyst
in follicular or more common corp lut, may mimic solid lesion, mimic rupture ectopic
-
Theca-Lutein cysts
largest functional cyst, bilateral, multi loculated, high hCG, associated w/ gestational trophobastic disease, nausea vomiting
-
Ovarian Hyperstimulation syndrome (OHS)
- Mild- pelvic discomfort, Enlarge ovaries but less than 5cm
- Severe- severe pelvic pain, enlarged ovaries <10cm
- Many large thin walled cysts inperiphery of ovary
-
Polycystic Ovarian Syndrome (PCOS)
- Stein Leventhal syndrome
- infertile, oligomenorrhea, hirsutism, anovulation, imbalence of low FSH high LH, round ovaries with increased #follicles bilateral, string of pearls,
-
Ovarian Remnant syndrome
history of bilateral oopherectomy, residual ovarian tissue left behind and become functional and produces cysts
-
Peritoneal Inclusion cysts
adhesions trap peritoneal fluid around ovaries, multiloculated, usually in women:premenopausal women with abd surgery, trauma, PID, endometriosis
-
Paraovarian cysts
Arise from broad ligament mesothelial or paramesothelial in origin, 30-40s, anywhere in adnexa, size does not change with horomonal cycle
-
benign cysts in fetuses and adolescents
small simple cysts in fetus from maternal horomones, premenarchal- small follicles, rarely sign of precocious puberty
-
simple cysts in post menopausal women
ok if <5cm, ovaries should not be palpable, only normal size with HRT
-
endometriosis
- functioning endometrial tissue outside uterus
- diffuse- within peritoneum
- localized- (endometrioma)
- bilat or unilat, may see fluid level
-
ovarian torsion
partial or complete roatationof ovary, usually childhood adolescence, produces enlarged edematous ovary >4cm, absent blood flow
-
Ovarian Carcinoma
Kills more than uterine and cervix combined, 4th leading cause of cancer death, 1 in 70 women get oc, 60% 40-60 yrs, Peri & post men, usu. detected stage II or III (50%), ascites & lymphadenopathy, predominantly cystic, vascular, incresed w/ breast or colon cancer, strong fact is fam hist or breast cancer,no children/infertile, late menopause
-
Cancer Stages
- I- limited to ovaries
- II- limited to pelvis
- III- limited to abdomen
- IV- liver- beyond abdomen
-
Surface epithelial-stromal tumors
- gyn tumors that arise from surface epithelium and cover ovary and underlying stroma
- 65-75% neoplasms
- 80-90% ovarian malignancies
- Most common serous and muscinous
-
Mucinous Cystadenoma
- Most common cystic tumor, benign
- Epithelial tumor (benign more common than serous)
- can be very large and fill pelvis and abdomen
- usually benign and unilateral
- multilocular
- benign more common than malignant
-
Mucinous Cystadenocarcinoma
- bilateral, lose sup border
- large,likely to rupture, mucoid ascites
- thick irregular walls, papillary projections and sepations
- if ruptures assoc with pseudomyxoma peritoneum (mass ascites)
-
Serous Cystadenoma
- Second most common benign tumor after dermoid
- usually unilateral
- thin sepations, multilocular
- smaller than mucinous
- frozen pelvis
-
Serous Cystadenocarcinoma
- More common than muscinous cystcarcinoma, lose sup. border
- 60-80% all ovarian carcinomas
- smaller than muscinous
- irregular borders, papillary projections, calcifications, septations, ascites, mets to liver, lymphnodes, lungs
-
Other epithelial tumors
- 1. Endometroid
- 2. Clear Cell (mullerian duct origin)
- 3.Brenner (transitional cell) uncommon
-
Germ Cell Tumors
- Derived from primative germs cells of embryonic gonad
- 95% are benign cystic teratomas
- rare, usually adolescents
- mixed tumors
- associated with elevated AFP and high hCG
- unilateral
-
Teratoma
Dermoid Tumors
- germ cell
- Most common ovarian neoplasm
- benign with malignant potential
- unilateral round/oval mass
- 80% child bearing age
- 3 germ layers: ectoderm, mesoderm, endoderm
- teeth, bones, fat, cartilege
- tip of iceberg shadowing/conf. w/ bowel
-
Immature teratomas
- germ cell
- uncommon
- young girls 10-20 yrs
- rapidly growing, solid malignant
- AFP elevated
- unilateral
-
Dysgerminoma
- Rare malignant germ cell
- solid mass in women less than 30 yrs
- along with serous cystadenoma-most common neoplasms in pregnancy
- hyperechoic solid with hemorrage and necrosis, speckled calcification
-
Endodermal sinus tumors
- germ cell
- rare rapidly growing also called yolk sac
- women under 20 yrs
- unilateral
- increased AFP
- 2nd most common malignant germ cell neoplasm after dysgerminoma
-
Stromal tumors
- sex cord stromal tumors are solid adnexa mass from embryonic gonadal or ovarian stroma2% ovarian malignancies
- Thecoma and fibroma most common
- hypoechoic
-
Fibroma and Thecoma
- mostly theca cells - thecoma
- benign,unilateral,postmenopausal, estrogen production
- mostly fibrous cells- fibroma
- Meigs syndrome- PE, ascites, solid tumor, unilateral, calcified
- 30yrs old
-
Granulosa
- Feminizing neoplasm
- cells resembling graffian follicle
- most common horomone active estrogenic tumor
- more common after menopause
- precocious puberty
- may torsion
- malignant transformation rare
-
Sertoli-Leydig Cell Tumor
- Androblastomas- rare
- women under 30 yrs
- unilateral
- malignant in 10%
-
Arrhenoblastoma
- Masculizing horomone
- peak incidence in 25-45 yrs
- Amenorhea and infertility
- malignant transformation in 22%
- unilateral 2-30 cm
-
metastatic disease
- ovaries more involved in mets than any other pelvic organ
- arise from breast, GI, pelvic organs (lymphatic spread)
- bilateral, ascites, "moth eatten" cystic pattern (necrotic)
-
Krukenberg's tumor
- mets to ovary from bowel,GI tract, GB, biliary, pancreas
- solid
-
Carcinoma of fallopian tubes
- lease common of gyn malignacies
- postmenopausal women
- usually the distal end
- Rare
- sausage shape complex mass
-
Other pelvic masses
- pelvic kidney
- omental cyst
- impacted feces
- distended bladder
- hydroureters
- colon cancer/masses
- ectopic pregnancy
identify uterine connection and search for ovary
|
|