"Up to 25% of medullary thyroid carcinomas are hereditary through a RET germline mutation that presents as MEN2a and MEN2b syndromes."
"The extent of radiologic evaluation is variable, depending on the suspicion of metastatic disease. Evaluation should uniformly begin with a neck ultrasound, to be supplemented by additional imaging if extensive neck disease is found. Additional imaging may include a CT neck and thorax, multiphase CT/MRI of the liver, or bone scan. PET-CT (FDOPA and FDG) have a role in staging and follow-up 10."
"Tl-201: has been shown to concentrate thallium-201 5"