From the Department of Otolaryngology, Ghaem Medical Center, Mashhad University of Medical Sciences, Mashhad, I R. Iran.
Abstract: (3722 Views)
Teratomas are bulky lesions that rarely occur in the head and neck regions.They
are composed of tissues from all germ layers with varying degrees of differentiation.
They arise from pluripotential stem cells and ectopic embryonic non-germ cells. The
most common sites of occurrence in the head and neck are the cervical region and the
nasopharynx. Three cases of these tumors are reported here that were found in the
nasopharynx, cervical region and the base of the tongue.