Progressive shoulder arthropathy.

Accepted for publication 17 November 1994 Clinical history An 84 year old Chinese woman presented with a one year history of increasingly severe right shoulder pain, associated with joint stiffness. There were no symptoms related to the rest of the upper limb or neck. On examination, a soft tissue mass was palpable over the anterior aspect of the right shoulder. The mass measured about 6 cm in diameter, was generally illdefined, soft in consistency, non-tender and cold to touch. Right shoulder movements were severely restricted in all directions because of severe pain. The other peripheral joints had satisfactory ranges of motion. Her general condition was otherwise satisfactory, with no other systemic abnormality evident.