SAPHO syndrome.

Four women with pustulosis palmoplantaris (PPP) and associated sternocostoclavicular hyperostosis are described. The connection between the two diseases is not coincidental: it is encountered in 9.4% of PPP patients, and was reported in the French literature as part of the SAPHO (synovitis acne pustulosis hyperostosis osteomyelitis) syndrome. This syndrome is linked to the spondyloarthropathies, having an increased prevalence of HLA B27 and occurrence of sacroiliitis. None of our patients had HLA B27, but HLA A26 was found in the 3 patients examined. No conclusion can be drawn from this finding, however, since this antigen is found in 21.7% of Ashkenazi Jews. Recognition of this syndrome by dermatologists will improve diagnosis and treatment.