Overview Sacrococcygeal teratoma is a rare tumor that develops at the base of the coccyx, known as the sacrococcygeal region. The majority of sacrococcygeal teratomas are congenital. They are diagnosed prenatally by a routine ultrasound examination. Most of these tumors are non-malignant; however, they may become malignant if not removed surgically. Epidemiology Prevalence - 1 in 30,000 - 70,000 live births Female: male ratio is 4:1 Malignancy is seen most commonly in males. It is the most common solid tumor seen in neonates.
The sacrococcygeal region is the most common site for a teratoma in neonates. Sacrococcygeal teratoma rarely affects adults. Teratomas seen in adults are primarily present congenitally but get detected in adulthood. Etiology Sacrococcygeal teratomas are germ cell tumors. Most germ cell tumors occur in the gonads or lower back, and when they occur in other areas,…
