“…With real-time ultrasonography, the lesion can be shown to move synchronously with the SCM muscle. CT or MRI should not be necessary when both the ultrasonographic and the clinical findings are compatible with FC, as in our case [3,[5][6][7] In addition to FC, the differential diagnosis of soft-tissue masses in the neck of a neonate includes neuroblastoma, rhabdomyosarcoma and other sarcomas, lymphoma, cystic hygroma, and branchial cleft cyst. Lesions that are more often midline or near the midline include dermoid cyst, teratoma, or thyroglossal duct cyst.…”