Tératomes matures bénins du médiastin

Every form of teratoma occurs in the mediastinum (mature, immature and with malignant transformation) but, in our study, they were exclusively mature. The histology is essentially similar to that of teratomas of gonads. However, pancreatic tissue occurs frequently in mediastinum (54% in literature, 25% in our study) but not in the gonads. On the other hand, thyroid follicles have not yet been seen in mediastinal teratomas.