In 1965 DiGeorge described congenital aplasia of the organs embryologically derived from the third and fourth pharyngeal pouches — the thymus and the parathyroid glands. 9–11 In these infants ...
Deletion of the ‘glial cells missing-2’ gene in mice disrupts development of the parathyroid glands but ... Surprisingly, the thymus has been identified as a secondary source of PTH production.