[Hypercalcemia following rhabdomyolysis-induced acute renal failure].

Hypercalcemia is an uncommon clinical feature during recovery from acute renal failure. Moderate hypercalcemia developed during recovery of kidney function in a 24-year-old man with acute renal failure following polytrauma-induced rhabdomyolysis (myoglobinuria). He presented with multiple hematomas of the back, chest, abdomen and upper and lower limbs. He was asymptomatic during the hypercalcemic phase, when Ca reached 13.2 mg and PTH levels (immunoradiometric assay) were low, 8.7 muug/ml (normal 10-65).