[en] It is suggested that there are differences in the radiographic appearance of rheumatoid arthritis (RA) in men compared with women. Bone proliferation, cysts, and well-defined erosions are reported more frequently in men, whereas osteoporosis, nodules, and deformities are more frequent in women. The authors blindly evaluated hand and wrist radiographs in 32 males and 32 match females with RA. The mean age was 56.4 years and mean disease duration, 10.5 years. The two groups were similar in disease distribution, symmetry, and severity. Cystic changes and well-defined erosions were present in 12 of 64 male and six of 64 female hands. Bone proliferation was present in 13 of 64 male and 13 of 64 female hands and in women related to disease duration. Previously reported differences relate to inadequate matching