This is a case of fetal myopericytoma investigated by prenatal ultrasound and confirmed by autopsy and histopathological examination after termination of pregnancy. On antenatal ultrasonography, the fetus of 20 weeks gestation had a single large multicystic neck mass with enhanced Doppler flow. Parents chose to terminate the pregnancy. On autopsy the neck mass was found to be a tumor with numerous vessels with no other associated malformations. Histopathological examination with immunohistochemistry revealed the tumor to bear the characteristics of benign myopericytoma. This is probably the earliest gestation at which fetal myopericytoma has been reported.