We believe that our patient may represent the first reported case of malignant transformation of mature thyroid tissue in a sacrococcygeal teratoma. The impact of his diagnosis on the decision ...

Doctors diagnosed the couple's unborn baby girl with a sacrococcygeal teratoma, a one-in-27,000 tumor that forms during pregnancy in the baby's tailbone. Mrs Tyler, 23, said: 'I was very scared.

Physical examination performed by an endocrinologist after the removal of the sacrococcygeal tumor revealed the thyroid ... of colloid material can be seen inside some of the follicles.

According to the Nationwide Children's Hospital online, sacrococcygeal teratoma, or SCT, is a tumor that forms on a fetus's tailbone. Amanda said she did prenatal ultrasounds, but the tumor was ...