What is a tail teratoma and what causes it?

Patient's question:

A few days ago, he kept bothering me, and I thought he was just being playful because he said he had lower back pain. But I noticed something wasn't right. I took the child to the doctor, who said it was a sacrococcygeal teratoma. It may need to be considered for surgical treatment, but for now, it's necessary to take medicine to help the body recover.
What kind of assistance is needed: What exactly is going on with the child having a sacrococcygeal teratoma? What should be done?

Doctor's answer:

The incidence of malignancy in all patients is 10% to 20%. In neonatal teratomas, 90% are benign. Most sacral teratomas are benign, with a well-defined capsule. Teratomas are classified into three types: mature, immature, and malignant. Malignant teratomas are rare. Teratomas are often nodular, with tough cyst walls and inconsistent hardness within the tumor, which may show cystic changes. They imply the union of three germ layers: the ectoderm includes nervous tissue, stratified epithelial tissue, and teeth; the mesoderm includes bone, cartilage, fat, and connective tissue; and the endoderm includes digestive glandular tissue, the thyroid, and other structures.

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