Gaucher's disease is an inherited glycolipid storage disorder, caused by a deficiency of the catabolic enzyme glucocerebrosidase. Frequently, N370S and L444P of mutations are observed. R463C (i.e., 1504C-->T) mutation may predict neurological involvement in Gaucher's disease. We report a 36-year-old Turkish man with type I Gaucher's disease with homozygous R463C mutation without neurological involvement.