Cardiac Teratoma in a Newborn With Right Ventricular Outflow Tract Obstruction
A newborn was referred to our department for severe cyanosis with cardiac systolic murmur. Echocardiography revealed in the right ventricle a 12-mm tumor with the typical aspects of a teratoma. The base of the tumor was implanted in the right ventricle apex and was composed of cysts of various sizes that were separated by solid areas. The sessile portion of the tumor invaginated during systole into the pulmonary artery trunk, causing severe obstruction (Figure 1 and Movies I through III of the Data Supplement). Complete surgical resection was performed without complication. Histological examination confirmed the presumptive imaging diagnosis of cardiac teratoma, revealing extensive foci of necrosis, stratified squamous epithelium, salivary glandular tissue, and mature respiratory epithelium (Figure 2). The child remains free of symptoms and tumor 7 months after surgery.
The online-only Data Supplement can be found with this article at http://circ.ahajournals.org/cgi/content/full/113/e17/DC1.