Thyroid carcinoma secreting ACTH
Ans. (b) Medullary caMedullary Cancer Thyroid:* 5% of thyroid cancers* Arises from Parafollicular C cells which are derived from Ultimobranchial Bodies.* Mc Site is supero lateral* C cells secrete CALCITONIN* Secretes ACTH, Serotonin, Calcitonin, CEA, Histaminidases, PG E2 and PGF2 Alpha.* FNAC showing amyloid is diagnostic
Follicular ca
Medullary ca
Papillary ca
Anaplastic ca
Thyroid Gland