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Surgery Thyroid Gland c01fedaa

Thyroid carcinoma secreting ACTH

A
Follicular ca
B
Medullary ca
C
Papillary ca
D
Anaplastic ca
High-Yield Explanation
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
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