Shimizu H, Kodama S, Takeuchi A, Matui T, Nakao H, Sakurai T, Kobayashi T
Department of Pediatrics, Himeji Red Cross Hospital, Japan.
Acta Paediatr Jpn. 1994 Dec;36(6):720-3. doi: 10.1111/j.1442-200x.1994.tb03279.x.
We report a male newborn with typical clinical signs of idiopathic infantile hypercalcemia (IIH); that is, hypercalcemia, hypercalciuria, an elfin face and nephrocalcinosis without giving Vitamin D3 supplementation to the patient. He had been treated with a vitamin D-free, low calcium milk and rectal administration of exogenous calcitonin (elcatonin). The latter seemed to be more effective as a treatment for IIH. The serum calcium level came within the normal range and the serum 1,25-dihydroxyvitamin D3 (1,25[OH]2D3) level decreased from 101.5 to 75.6 pg/mL with the treatments mentioned above. These results suggest that a high serum concentration of 1,25(OH)2D3 is part of the pathogenesis of IIH. However, we were not able to clarify the pathogenesis of the high serum concentration of 1,25(OH)2D3.
