Parathyroid adenoma presenting as genu valgum in a child: A rare case report.

Autor: Rao, K. Sreedhar, Agarwal, Praveen, Reddy, Jayachandra
Zdroj: International Journal of Surgery Case Reports; 2019, Vol. 59, p27-30, 4p
Abstrakt: • Primary hyperparathyroidism is a rare disease in children and adolescents. • Genu valgum is a rare presentation in children with PHPT. • Primary hyperparathyroidism may present as normocalcemic primary hyperparathyroidism if associated with vit. D deficiency. • Technetium99 M-sestamibi scan is most sensitive and specific for localization of parathyroid adenoma. • Surgery is the only curative treatment for PHPT and post-operative management for features of hypocalcemia is crucial. Parathyroid adenoma is the most common cause of primary hyperparathyroidism (PHPT). Patients typically present with elevated serum calcium levels and elevated serum parathyroid hormone levels. The incidence and prevalence is higher in adults but is rare in pediatric age group. A 12-year-old, pre-pubertal female presented with pain in bilateral knee joints and gait abnormality since one year. Her past medical history and family history were insignificant. On general examination, no other congenital bony deformities were observed besides genu valgum. Laboratory tests showed hypocalcemia and elevated serum levels of intact parathyroid hormone. Radiograph of bilateral both knee joints was suggestive of genu valgum. Ultra sonogram of neck revealed enlarged parathyroid gland and a Technetium (99mTc) sestamibi scan was suggestive of right inferior parathyroid adenoma. Surgical resection was performed and post-operative hypocalcemia was seen. After necessary treatment was given and the patient was discharged when asymptomatic. Parathyroid adenoma causing primary hyperparathyroidism is a rare disease in children. They typically present with nonspecific symptoms involving gastrointestinal, musculoskeletal, renal and neurological symptoms due to hypercalcemia. Moreover, Genu valgum is a rare presentation in children with parathyroid adenoma. [ABSTRACT FROM AUTHOR]
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