2024年7月22日 · The ovaries are firm and ovoid in shape and measure approximately 1.5-3.0 cm × 1.5-3.0 cm × 1.0-2.0 cm (length x width x thickness) (corresponding to a volume of 1.2-9.4 cm 3). For more on ovarian volume, see: ovarian size and volume. An ovary typically weighs 2-8 g, however, they change during life and double in size in pregnancy.

2023年9月24日 · Ovarian tumors are relatively common and account for ~6% of female malignancies. This article focuses on the general classification of ovarian tumors. For specific tumor features, please refer to the relevant subarticles. Pathology Subtypes Primary ovarian tumors

2024年9月11日 · MRI may show a beak sign which may suggest an ovarian origin. Signal characteristics within the cyst are usually homogeneous. T1: cyst content is generally of hypointense signal in uncomplicated cases. T2: cyst content is of fluid (hyperintense) signal. T1 C + (Gd): enhancement of cyst wall sometimes occurs after contrast administration

2023年9月17日 · Ultrasound is usually the first imaging modality for assessment of ovarian lesions. Imaging features of simple ovarian cysts: anechoic; intraovarian or exophytic; imperceptible wall; posterior acoustic enhancement: may not be as obvious with harmonic or compound imaging; visible far wall

2024年12月24日 · CT. CT has high sensitivity in the diagnosis of cystic teratomas 6 though it is not routinely recommended for this purpose owing to its ionizing radiation. Typically CT images demonstrate fat (areas with very low Hounsfield values), fat-fluid level, calcification (sometimes dentiform), Rokitansky protuberance, and tufts of hair.

2025年1月7日 · Ovarian torsion occurs when the ovary rotates around its supporting ligaments, twisting and compressing the accompanying blood vessels and lymphatics. The term adnexal torsion is preferred because a portion of the fallopian …

2024年6月29日 · A hemorrhagic or a ruptured ovarian cyst is the most common cause of acute pelvic pain in an afebrile, premenopausal woman presenting to the emergency room 5. They can occur during pregnancy. Pathology. Hemorrhagic ovarian cysts typically develop as a …

2024年9月11日 · Polycystic ovaries (PCO) or polycystic ovarian morphology (PCOM) is an imaging descriptor of a particular type of change in ovarian morphology. A proportion of women with polycystic ovaries will have polycystic ovarian syndrome (PCOS) , which in turn requires additional clinical, as well as biochemical, criteria; otherwise, polycystic ovaries ...

2022年7月19日 · A mucinous cystadenoma is benign with excellent prognosis (cf. borderline mucinous tumors of the ovary or mucinous cystadenocarcinoma of the ovary). Nonetheless, they are frequently surgically excised for histological confirmation of benignity, and due to mass effect of the large tumors.

2025年1月20日 · Ruptured ovarian cysts are one of the most common causes of acute pelvic pain in premenopausal women. The sonographic appearance depends on whether a simple or hemorrhagic ovarian cyst ruptures, and whether the cyst has completely collapsed.