title: Microscopic studies on crystals in skeletal muscle from two cases of xanthinuria.
mesh_terms: D000328:Adult; D001706:Biopsy; D003460:Crystallization; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D007042:Hypoxanthines / Q000032:analysis; D008297:Male; D008857:Microscopy, Interference; D008858:Microscopy, Phase-Contrast; D008859:Microscopy, Polarization; D009132:Muscles / Q000032:analysis / Q000473:pathology*; D011686:Purine-Pyrimidine Metabolism, Inborn Errors / Q000473:pathology*; D013057:Spectrum Analysis; D014970:Xanthines / Q000032:analysis / Q000652:urine*
chemical_list: D007042:Hypoxanthines; D014970:Xanthines