A HUGE IMMATURE CERVICAL TERATOMA IN A NEWBORN - REPORT OF A CASE

A neonate with a large cervical mass was transferred to our hospital a t 4 days of age. A computed tomography scan showed a contrast-enhanced solid mass with multiple cystic elements and fine calcification. Ultr asonography also revealed a predominantly solid mass with calcificatio n, containing multiple cysts. These studies suggested a teratoma, but could not rule out a hemangioma. The tumor was removed on the 12th day of life. A pathological study revealed an immature teratoma that demo nstrated fetal type cartilage and an immature neural tube. The operati ve complete removal of a cervical teratoma in neonates is recommended as soon as possible. The management of a pediatric cervical teratoma s hould also be similar to that of a sacrococcygeal teratoma. The incide nce of cervical teratoma in all pediatric teratomas ranges from 2.3%-9 .3% in the West, and from 1.6%-8.3% in Japan.