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.
(Arch Intern Med 139:1186-1187, 1979)
Mitnick PD, Beck LH. Hypouricemia and Malignant NeoplasmsA New Case of Xanthinuria. Arch Intern Med. 1979;139(10):1186–1187. doi:10.1001/archinte.1979.03630470094030