抄録
A 14-year-old boy with Lesch-Nyhan syndrome was treated for hyperuricemia by allopurinol.3 years later he developped many stones and the stone analysis revealed xanthine. Iatrogenic xanthine stone formation by allopurinol are reported in Lesch-Nyhan syndrome and in patients with progressive cancer.
Etiology and prevention of xanthine stone formation is briefly discussed.
