<prompt> Medullary carcinoma thyroid all EXCEPT:March 2013Contains amyloidTSH dependentSecretes calcitoninPatients should be screened for RET point mutation on chromosome 10  <response>: Ans. B i.e. TSH dependentThe rate of growth of papillary carcinoma thyroid may be stimulated by TSHThyroid medullary Ca MTC80 cases are sporadic,20 are familial MEN-Ha or MEN-Hb,MTC is the first abnormality expressed in MEN-Ha Ilb,Stroma of MTC shows material with staining propeies of amyloid,MTC can be diagnosed by demonstrating calcitonin within the MTC cells on immuno-histochemical studies,Total thyroidectomy is the TOC 