Lindsley H B, De Smet A A, Neff J R
Skeletal Radiol. 1987;16(2):142-5. doi: 10.1007/BF00367763.
Juxta-articular inflammatory masses, sternomanubrial or sternoclavicular, were noted in two women who were subsequently found to have ankylosing spondylitis. The differential diagnosis of juxta-articular masses should include systemic rheumatic disorders as well as tumor or infection.