Prenatal sonographic evaluation of two intracranial teratomas.

Prenatal sonographic evaluation is of utmost importance in the detection of congenital anomalies. At the Ultrasound Section of our Radiology service, we incidentally detected fetal intracranial neoplasms in two different patients using non-invasive imaging. Our presumptive diagnosis in both cases was a teratoma, the most common brain tumor in the perinatal period. Subsequent confirmation was provided with pathological samples obtained at autopsy in both patients, revealing immature teratomas. Fetal intracranial tumors are so rare and incredibly, these two unique cases presented in our section within just a few months of one another.