using 3 polyclonal antisera directed against synthetic human calcitonin , we investigated at the electron microscope level the intra-or-extra-cellular fibrillar/filamentous aggregates found in 4 amyloid-rich medullary thyroid carcinomas ( mtc ) and in a number of other endocrine polypeptide tumours with or without demonstrable amyloid deposition .
C0238462
medullary thyroid
C0014136
endocrine