the role played by the ultimobranchial body in the histogenesis of thyroid tumors is discussed in the light of the results of studies of several types of thyroid carcinomas : poorly differentiated intermediate carcinomas , medullary carcinomas with thyroglobulin immunoreactivity , and mucoepidermoid carcinomas with `` '' follicular '' '' and `` '' parafollicular '' '' differentiation .
C0040136
the
C0206682
carcinomas