[Whole-body osseous scintigraphy and Ca++ kinetics in patients with renal transplants]

Bone scintigraphy with 99mTc-diophosphonate and a whole body scanner was performed on 18 subjects with good renal function who had received a kidney transplant more than six months previously. This demonstrated scintigraphyc abnormalities in 17 of the cases. The alterations were characterized in 44,5% of the cases by focal uptake of the tracer. Diffuse alterations were observed in 4 of the 18 cases studied (22%). In these patients increases of serum alkaline phosphatase and in PTH levels were present. Ca++ exchangeable pool values and accretion rate were normal in the subjects with focal lesions. In the cases where scintigraphy showed diffuse lesions both the above parameters were much increased.