At the age of 13 years, after 2 years of illness, a girl was hospitalized for abdominal pain, vomiting, weakness, and lethargy. A clue to the diagnosis was the finding of hypercalcemia (21.8 mg. per 100 ml. of serum). Surgical removal of a parathyroid adenoma from the right lobe of the thyroid was followed by prompt clinical improvement. Physical recovery was accompanied by a remarkable change in the personality of the child, who became bright and alert, thereafter did extremely well in school, and resumed normal social activity.
Reinfrank RF, Edwards TL. Parathyroid Crisis in a Child. JAMA. 1961;178(5):468–471. doi:10.1001/jama.1961.03040440020004