Vitamin D overdose Various toxicities: case reportA 2-year-old boy developed hypercalcaemia, kidney enlargement and hyperechogenicity of renal cortex secondary to vitamin D intoxication following an overdose of vitamin D [duraton of treatmet to reactions onset not stated; not all outcomes stated].The boy, who received excess vitamin D (overdose) [dosage, route and indication not stated] developed life threatening hypercalcaemia. He needed prolonged hospital stay, intensive therapy to reduce blood calcium, complex pharmacotherapy and haemofiltration. An abdominal ultrasonography performed following therapy completion revealed enlargement of both the kidney and persistent hyperechogenicity of renal cortex. Partyka K, et al. Severe hypercalcaemia secondary to vitamin D intoxication in a 2-year-old boy -a case report. [Polish].