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Small follicular or functional theca-lutein cysts are a common finding in fetal and neonatal ovaries. After delivery, decrease of hormonal stimulation may lead to spontaneous resolution of the cyst. A high rate of complication has been underlined by recent studies, the most common being ovarian torsion with subsequent loss of the ovary. Because torsion may happen with any size of cyst, however large or small, we suggest in utero decompression even in small fetal ovarian cysts (< 5 cm). We report here three cases of such cysts managed by intrauterine aspiration with good outcome and no further need for neonatal surgery. In all cases cytology of the cyst aspirate demonstrated numbers of granulosa cells and fluid biochemistry showed a high amount of estradiol, progesterone, and testosterone that confirmed the etiology as ovarian. Despite the small size of the cysts, no technical difficulties were encountered and no maternal or fetal morbidity occured. Prenatal management of fetal ovarian cysts remains controversial, however, and our limited experience needs to be assessed on a larger number of cases. [ABSTRACT FROM AUTHOR]

The article presents a study which describes and assesses the sonographic findings, evolution and clinical implications of thrombosis of the fetal dural sinuses. It was found that thrombosis of the cerebral venous circulation can occur antenatally and is detectable by fetal real-time and color Doppler ultrasound examination. It notes that a review of the literature supports targeted evaluation of the fetus by ultrasound imaging and magnetic resonance imaging to guide the diagnosis.

The article presents a case study of a 25 years old pregnant woman. The foetal anomaly scan performed to the patient during her 22 weeks of gestation revealed an anechoic left adrenal mass which undergo doppler examination which showed that is was avascular. The condition was diagnosed with foetal neuroblastoma with subsequent fetal supraventricular tachycardia and hydrops.