A Case of Lesch-Nyhan Syndrome Manifesting Only Chronic Gouty Arthritis without Neurologic Symptom

ABSTRACT

Deficiency of hypoxanthine-guanine phosphoribosyltransferase is a purine nucleotide disorder and is the most common genetic cause of uric acid overproduction. This disease has a wide range of spectrum with regard to neurological features depending on the extent of the enzymatic deficiency. Complete deficiency of hypoxanthine-guanine phosphoribosyltransferase, called Lesch-Nyhan syndrome, is presented with hyperuricemia and characteristic neurological manifestation and self-mutilation. Partial hypoxanthine-guanine phosphoribosyltransferase--deficient patients are presented with a various intensities of the aforementioned symptoms, from almost normal neurologic manifestation to a severe form along with hyperuricemia. We report a twenty-year-old man with complete hypoxanthine-guanine phosphoribosyltransferase mutation and Lesch-Nyhan sydrome, who manifested gouty arthritis without neurologic symptom.