先天性甲狀腺功能低下症(congenital hypothyroidism)若區分為甲狀腺發育不全(dysgenesis)及合成異常(dyshormonogenesis)兩大類病因,下列那一選項的致病病因與其他三者最不相同?
Pendred syndrome
lingual thyroid
iodide transport defect
iodide organification defect