Cardiac myxoma (CM) is a rare cardiac disease, accounts for approximately 70% of the adult cardiac tumors, with the majority located in the left atrium and less commonly in the right atrium. Rarely myxomas may be present in right ventricular, biatrial, left ventricular, right ventricular outflow tract or heart valves. Our study described clinical and echocardiographic characteristics of 5 patients with echocardiographic diagnosis of rare CMs, among them pulmonary valve (PV) myxoma was never been reported before. Therefore, cardiac tumors developed in unusual locations should be considered to exclude the possibility of myxoma.

Pulmonary artery sling (PAS) and tracheal agenesis (TA) are both very rare diseases. Most of PAS are associated with tracheal bronchial malformations. However, PAS associated with TA have not yet been reported so far. Here, we report one case of PSA associated with TA diagnosed prenatally in our hospital. Due to the extremely low incidence of two diseases, physicians do not have sufficient understanding of these disease, prenatal ultrasound examination found that these kinds of diseases are very challenging and confusable. Prenatal ultrasound and MRI examination of pulmonary artery branches, trachea and esophagus will provide useful information. Improving the accuracy of prenatal fetal diagnosis is helpful for perinatal management and counseling.