Pericardial Cystic Mass with Fetal Tachycardia

Abstract

A pericardial cystic mass is a rare congenital anomaly and may be mistaken for other pericardial and pleural masses. A 31-year-old pregnant woman at 38 weeks of gestation presented with fetal pericardial cyst and fetal tachycardia, which were confirmed by transthoracal echocardiography after delivery. Tachycardia did not persist after delivery. The case is being followed up without any clinical problems at the pediatric cardiology clinic.

The ultrasound appearance of an unusual fetal pericardial cyst

“…The prenatally diagnosed pericardial cysts reported to date were located adjacent to the heart borders and not typically in the posterior mediastinum. 1,[5][6][7] Three resolved prior to birth, 1 and two did not change in size. 5,6 One presented with tachycardia that resolved after birth.…”

“…1,[5][6][7] Three resolved prior to birth, 1 and two did not change in size. 5,6 One presented with tachycardia that resolved after birth. 6 Ultimately, cases reported with outcomes demonstrated that neonates were asymptomatic and required no treatment in the newborn period.…”

“…5,6 One presented with tachycardia that resolved after birth. 6 Ultimately, cases reported with outcomes demonstrated that neonates were asymptomatic and required no treatment in the newborn period. 1,5,6 In the adult population, pericardial cysts are the most common cystic lesion of the heart.…”

“…6 Ultimately, cases reported with outcomes demonstrated that neonates were asymptomatic and required no treatment in the newborn period. 1,5,6 In the adult population, pericardial cysts are the most common cystic lesion of the heart. 2 They are usually unilocular and located lateral to the heart, most commonly on the right side of the heart (70%), but some have been reported to be located on the left (22%) and others in the anterior or posterior mediastinum (8%).…”

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

“…Paracardial cysts, defined as cystic lesions that are adjacent to or originate from the heart, have been an exceedingly rare prenatal diagnosis1–8. More often, these cysts are incidental findings after birth on chest radiography, cardiac ultrasound, magnetic resonance imaging (MRI) and computerized tomography (CT).…”