CARCINOMA of the thyroid gland in children has been the subject of numerous publications. Pemberton and Black1 noted that 18 children, including 12 previously reported by Kennedy,2 had been treated for carcinoma of the thyroid at the Mayo Clinic before 1944. In 1953 Winship and Chase3 collected from the literature 230 cases of carcinoma of the thyroid among children, including the cases described by Pemberton and Black.
The present report comprises a review of our total experience wtih carcinoma of the thyroid in children up to 15 years of age seen at the Mayo Clinic through 1954. In review-ing the material for this study all pathologic specimens were reexamined, and in a few instances the pathologic type or grade of carcinoma has been changed. One case originally considered carcinoma was reclassified as reticulum-cell sarcoma that probably was not primary in the thyroid and was excluded from the