Beebeejaun et al. suggested a possible hypothesis for the correlation based on shared embryological origin and genes (i.e. Eya 1), high parathyroid hormone (PTH), low 1,25 hydroxyl vitamin D, hypercalcemia resulting in high levels of angiogenic growth factors (i.e. bFGF) [18]. The gene discussed is PTH; the disease is Hypercalcemia.