Abstract
We report the case of 3 mediastinal teratomas, 1 intrapericardial immature and 2 mediastinal grade 0, diagnosed in the 38 th week of gestation (intrapericardial immature) in the last stage of pregnancy (mature mediastinal). The surgical resection of the masses was successfully undertaken shortly after birth. The histological description of tumor after excision has reported immature multicystic teratoma Grade 2 of 3, with immature neural tissue and without yolk sac tumor cells (for the intrapericardial case) and mature tissue grade 0 large masses, with all tissues represented at histology (for the extrapericardial case). All neonates showed a favorable postoperative course after excision.
Highlights
Cardiac intrapericardial teratomas are rare and usually benign tumors
We report the case of 3 mediastinal teratomas, 1 intrapericardial immature and 2 mediastinal grade 0, diagnosed in the 38th week of gestation in the last stage of pregnancy
They originate from within the pericardium, usually attached to the great vessels as pedunculated, solid and cystic masses. This kind of disease can be associated with nonimmune hydrops fetalis, and a pericardial effusion is resent in almost all patients and should alert the clinicians to the possibility of a tumor[10]; it may lead to a lifethreatening tamponade, and to symptoms related to the compression of the mass itself on the heart
Summary
Cardiac intrapericardial teratomas are rare and usually benign tumors. They originate from within the pericardium, usually attached to the great vessels as pedunculated, solid and cystic masses. The histological description of tumor after excision has reported immature multicystic teratoma Grade 2 of 3, with immature neural tissue and without yolk sac tumor cells (for the intrapericardial case) and mature tissue grade 0 large masses, with all tissues represented at histology (for the extrapericardial case).
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