Abstract
We present the report of an adolescent female who presented with acute gastroenteritis, weight loss, and hypercalcemia. Further evaluation revealed hyperthyroidism to be the cause of hypercalcemia. Treatment of hyperthyroidism successfully corrected the hypercalcemia in our index case.
Highlights
Hypercalcemia secondary to hyperthyroidism is rare in children, unlike adults [1]
We report an adolescent female who presented with acute gastroenteritis, weight loss, and hypercalcemia
Hypercalcemia secondary to hyperthyroidism is uncommon in children
Summary
Hypercalcemia secondary to hyperthyroidism is rare in children, unlike adults [1]. Concomitant hypercalcemic symptoms may delay the diagnosis of hyperthyroidism and it should be considered in the differential diagnosis of hypercalcemia. A 15-year-old female with attention-deficit/hyperactivity disorder (ADHD) presented to our hospital with a four-week history of intermittent watery stools, non-bilious vomiting, and a 40-pound weight loss Prior to admission, she was evaluated at urgent care centers on multiple occasions where she was treated with ondansetron and omeprazole with only temporary improvement in her symptoms. She was readmitted with vomiting and significant hyperthyroidism two weeks later due to poor compliance. Her serum calcium levels normalized, and she was discharged home on levothyroxine. At a follow-up office visit, she was asymptomatic with normal serum calcium levels and improving thyroid hormone levels
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