title: [Asymptomatic, excessive hypercalcemia n a 12-year-old boy].
abstract: A cervical lymph node enlarged since 3 weeks was to be removed in a 12-year-old boy, whose only complaint was slight fatigue. Routine screening revealed hypercalcemia of 7.3-8.1 mval/l. This rose to 9.2 mval/l despite furosemide-induced high fluid turnover and prednisone while diagnostic evaluation proceeded. Serum phosphate was low consistently. Malignancy, vitamin D-intoxication, immobilisation and familial conditions could be ruled out as causes. Highly elevated serum-parathormone levels inspite of hypercalcemia, and ultrasonography of the neck were the most helpful evidence of a parathyroid adenoma. Calcitonin was effective in lowering serum-calcium to 6-7 mval/l preoperatively.
mesh_terms: D000236:Adenoma / Q000150:complications / Q000175:diagnosis*; D002116:Calcitonin / Q000008:administration & dosage; D002648:Child; D006801:Humans; D006934:Hypercalcemia / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D008297:Male; D010281:Parathyroid Hormone / Q000097:blood; D010282:Parathyroid Neoplasms / Q000150:complications / Q000175:diagnosis*; D014463:Ultrasonography
chemical_list: D010281:Parathyroid Hormone; D002116:Calcitonin
vernacular_title: Asymptomatische, exzessive Hypercalcämie bei einem 12jährigen.