A 76-year-old man presented with a long history of discomfort in his right hip and groin. One month previously he had suffered an exacerbation of his pain, which lasted 2 weeks and then resolved. He was walking with 2 canes and had difficulty with stairs. He denied unintentional weight loss, fevers, chills, night sweats or fatigue. His medical history was significant for congestive heart failure and a left total hip arthroplasty. He had a bilateral lurch when walking. The range of hip motion was moderately to severely restricted in all directions. A thorough biochemistry work-up gave normal results as did a skeletal survey and chest radiography.
From the plain radiograph of the right hip (Fig. 1) and magnetic resonance images (Fig. 2) can you make the diagnosis?
For the answer see page 432.
Footnotes
Section Editor: Peter L. Munk, MD
Inquiries about this section should be directed to Dr. Peter L. Munk, Professor, Department of Radiology, Vancouver General Hospital and Health Sciences Centre, 855 West 11th Ave., Vancouver BC V5Z 1M9