A 1-week-old newborn with hypercalcemia and palpable nodules: subcutaneous fat necrosis

Fahed Aljaser1, Michael Weinstein

  • 1Division of Pediatric Medicine, Hospital for Sick Children and University of Toronto, Toronto, Ont.

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The Parathyroid Glands00:59

The Parathyroid Glands

The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...