title: Hypouricemia and malignant neoplasms. A new case of xanthinuria.
abstract: An 80-year-old man with squamous cell carcinoma of the parotid gland was noted to have persistent severe hypouricemia with serum uric acid values of 0.5 to 1.0 mg/dL. Urinary excretion of uric acid was very low and a diagnosis of xanthinuria was made.
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000150:complications*; D006801:Humans; D008297:Male; D010307:Parotid Neoplasms / Q000150:complications*; D011686:Purine-Pyrimidine Metabolism, Inborn Errors / Q000150:complications / Q000175:diagnosis*; D014527:Uric Acid / Q000097:blood*; D014970:Xanthines / Q000652:urine*
chemical_list: D014970:Xanthines; D014527:Uric Acid