Parathyroid Gland Disease, also known as parathyroid diseases, is related to chief cell adenoma and familial isolated hypoparathyroidism. An important gene associated with Parathyroid Gland Disease is PTH (Parathyroid Hormone), and among its related pathways/superpathways are Signal Transduction and Metabolism of steroids. The drugs Acetaminophen and Tramadol have been mentioned in the context of this disorder. Affiliated tissues include thyroid and kidney, and related phenotypes are homeostasis/metabolism and growth/size/body region