KEY CLINICAL MESSAGE
EC are a common complication, and STS has been used for treatment. We presented a young female on PD with BT, finding ABD, and the therapeutic including STS. Lesions disappearing. ABD is increasing, and, is necessary to redefine PTH values, and close monitoring of parameters that guide variations in turnover.
Key words: low bone turnover, brown tumour, sodium thiosulphate, adynamic bone disease.