Difficulties in perinatal diagnosis of fetal thoracic foregut cysts: Report of two cases

Etiology and outcome of prenatally detected paracardial cystic lesions: a case series and review of the literature

“…Bronchogenic cysts result from abnormal budding of the ventral diverticulum of the primitive foregut32–35. On ultrasound exam they present as single unilocular, echo‐free cystic structures within lung parenchyma or within the posterior mediastinum.…”

The ultrasound appearance of an unusual fetal pericardial cyst

“…As the cyst was small, located centrally, and not associated with hemivertebrae, it was felt that a neurenteric cyst was also less likely. Gastric duplication cysts are rare, and the one antenatally reported case was much larger and asymmetric …”

“…Gastric duplication cysts are rare, and the one antenatally reported case was much larger and asymmetric. 3 Because the cyst was small, there was no mediastinal shift, no compression of the great vessels or pulmonary veins, normal cardiac function, normal amniotic fluid volume, and neither hydrops nor significant compression of the esophagus, heart structures, or airways, we speculated that the fetus would do well in the neonatal period. A fetal MRI was considered, but not performed as it was thought to have a low likelihood of resulting in a change in the management of the pregnancy.…”

Prenatal Sonographic Diagnosis of a Pericardial Cyst

“…The differential diagnosis of an isolated cystic shadow adjacent to the heart includes teratoma, 8 lymphangioma, a neurenteric cyst, a bronchogenic cyst, 4 a gastroenteric cyst, 9 a pericardial cyst, and localized pericardial effusion. Paracardial teratoma is usually associated with some solid components with cystic components 8 .…”