The author has recently experienced a case of reticulum cell sarcoma of the tonsil associated with distant bone involvement verified histopathologically, which is supposed to be rare. The case, 29 years old Korean soldier, was admitted to C.A.H. because of soreness and foreing body sensation of throat for three months. After admission, he also complained of numbness on left elbow and roentgenogram of bone series were revealed a large rediolucent density in left elbow and destructive change in left radial head, which suspected to be malignant tumor. Histopathological examinations of right tonsil and head of left radius were reported of reticulum cell sarcoma respectively.