using an avidin-biotin immunoperoxidase technic , the authors studied 29 anaplastic thyroid tumors ( atts ) to determine the frequency of hormonal ( thyroglobulin -- tg ; calcitonin -- ct ) , epithelial ( epithelial membrane antigen , monoclonal keratin ) , or sarcoma ( desmin ; alpha-1-antichymotrypsin -- act ; vimentin ) markers .
C0040136
thyroid tumors
C0040123
thyroglobulin