[Cervical thymic choristoma ].

Neck and thyroid tumors probably of thymic origin are more frequently reported since two years. It is therefore of interest to specify incidence and way of production of cervical ectopic tissue from they issue. So, authors studied 763 autopsies of fetus of various ages, newborns and infants and surgical pieces of 8 children and adults. Analysis of 72 cases of cervical thymic chorista.