AU - Kamath, Sowmini AU - Shenoy, Janardhan AU - Kini, K AU - Shetty, Kishan AU - Pai, K TI - Primary hyperparathyroidism presenting as bilateral genu valgum PT - CASE DP - 2018 Apr 1 TA - International Journal of Health & Allied Sciences PG - 114-116 VI - 7 IP - 2 4099- https://www.ijhas.in/article.asp?issn=2278-344X;year=2018;volume=7;issue=2;spage=114;epage=116;aulast=Kamath;type=0 4100- https://www.ijhas.in/article.asp?issn=2278-344X;year=2018;volume=7;issue=2;spage=114;epage=116;aulast=Kamath AB - We present two children with bilateral knock-knee. Both of them had hypercalcemia, hypophosphatemia, raised alkaline phosphatase and parathormone, normal renal function, and deficient serum vitamin D levels. Sestamibi scintigraphy showed a parathyroid adenoma in both children, which was removed surgically with improvement. Primary hyperparathyroidism should be a differential diagnosis for bilateral genu valgum.