초음파 통계 OBGYhysteroDop 정밀정밀 양수양수 3DBPP 합계

Parovarian cyst sonographer 권혜영

정 O 옥 (F/37)  내원  low abd pain ( 누르면 ) : 2.3 Days ago  LMP ->  G (4) P(1) AA(2) SA(1)  P/E   Ut: AV nl size  Adn : rt tender  lt free  CA (8.23)

sono  uterus-> IUD state 외에 특이소견 없음   Adnexa  Rt. ovary: 3.3 X 2.3 cm sized hemorrhagic mass  Lt. ovary: 2.9 x 1.3Cm  abn, findings:  about 2.8 x 2.4 cm sized anechoic cyst  beside Rt. ovary   PCDS: Depth 1.9Cm sized fluid collection   Imp: Rt. ovarian mass  Rt. parovarian cyst   F/U after mens : 9/7 : sono

sono  LMP : 9/3  Uterus-> IUD state 외에 특이소견 없음  Adnexa  Both ov: No abnormal findings  abn, findings:  about 2.8 x 2.2 Cm sized anechoic cyst  beside Rt. ovary   PCDS: (-)   Imp: R/O Rt. parovarian cyst  F/U 6 months later

 constitute 10% of adnexal masses  found in the broad ligament specifically, mesosalpinx (ovary ~fallopian tube)  3 types of cysts - 68% : mesothelial origin - 30% : paramesonephric elements - 2% : mesonephric origin

 found over a wide age range  most common in the third and fourth decades (Paramesonephric cysts rarely occur before puberty)  vary greatly in size(from tiny to massive)  Larger cysts tend to be seen in younger patients (usually of mesothelial origin)  rarely bilateral or multiple, Hemorrhage, torsion, rupture, or secondary infection are infrequent complications

 Neoplasms occur 2% of cysts  Pathologically->serous cystadenomas, serous adenofibromas, papillary serous malignancy, and cystadenocarcinoma  Neoplasms have been seen in cysts as small as 4 cm

 Symptom - lower abdominal pain - menstrual irregularities - increased abdominal girth (due to displacement of pelvic organs by the cyst)

 Sonographically - thin walled, unilocular with anechoic contents - Large parovarian cysts may be located superior to the uterus mimicking the urinary bladder - Unlike physiologic ovarian cysts, parovarian cysts do not change over the course of the menstrual cycle or with hormonal administration

- Eccentric ovarian cysts occurring at the ovarian edge, can be mistaken for parovarian cysts - They can be differentiated by identifying crescentic shaped ovarian tissue surrounding a portion of the ovarian cyst margin.

 Hydrosalpinx - anechoic, thin walled cyst - typically tubular appearance - Additionally, clinical findings of pelvic inflammatory disease help distinguish this from a parovarian cyst

Differential diagnosis