Although renal calcium crystal deposits (nephrocalcinosis) may occur in acute phosphate poisoning as well as type 1 renal tubular acidosis (RTA), hyperphosphatemic hypocalcemia is common in the former while normocalcemic hypokalemia is typical in the latter. Here, as a unique coexistence of these two seperated clinical entities, we report a 30-yr-old woman presenting with carpal spasm related t...

Bisphosphonate generally seems to be safe, but hypocalcemia may occasionally develop in the course of bisphosphonate treatment. Hypocalcemia induced by bisphosphonate is usually mild and asymptomatic, but unrecognized or poorly treated hypocalcemia can lead to life-threatening state. A 78-year-old woman who had a history of hip arthroplasty and intravenous zoledronate treatment for femur neck f...

Hypoparathyroidism is a rare endocrine disorder characterized by low serum calcium and parathyroid hormone levels. The most common cause is parathyroid iatrogenic surgical removal. However, innumerous and rarer conditions can cause hypoparathyroidism. The authors describe a 27-year-old man that presented in emergency department with confusion, amnesia and decreased attention span. A cerebral co...

The effects of serum and brain calcium concentration on rat behavior were tested by maintaining animals on either distilled water (N = 60) or water containing 1% calcium gluconate (N = 60) for 3 days. Animals that were maintained on high calcium drinking water presented increased serum calcium levels (control = 10.12 +/- 0.46 vs calcium treated = 11.62 +/- 0.51 microg/dl). Increase of brain cal...